Prof. Doug Tennant, 'The Author' (2005), pp. 3–4, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Abbreviations' (2005), pp. 13–14, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Preface' (2005), pp. 15–16, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'General Introduction' (2005), pp. 17–24, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Introduction' (2005), pp. 25–30, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Selected Bibliography' (2005), pp. 31–32, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Table of Cases' (2005), pp. 33–40, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Part I. Formation of Contracts' (2012), pp. 41–108, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Part II. Contents of a Substantive Validity' (2012), pp. 109–172, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Part III. Contents of a Contract' (2012), pp. 173–228, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Part IV. Termination of Contracts' (2012), pp. 229–266, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Part V. Specific Contracts' (2005), pp. 267–282, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)

Prof. Doug Tennant, 'Index' (2005), pp. 283–286, in Herbots Prof. Dr Jacques H. (Volume Editor), Roger Blanpain (General Editor), Michele Colucci (Associate General Editor), Papua New Guinea, International Encyclopaedia for Contracts (Kluwer Law International, The Netherlands)