Kukhang, T. (1988). Studies on performance of polycrss hybrids and compatibility relationships among selected sweet poatao: A thesissubmitted in partial fulfilment of the requirement for the Post Graduate Diploma, September 1988. Papua New Guinea University of Technology.
Lua i Stíl Chicago (17ú heag.)Kukhang, Tom. Studies on Performance of Polycrss Hybrids and Compatibility Relationships Among Selected Sweet Poatao: A Thesissubmitted in Partial Fulfilment of the Requirement for the Post Graduate Diploma, September 1988. Lae: Papua New Guinea University of Technology, 1988.
Lua MLA (9ú heag.)Kukhang, Tom. Studies on Performance of Polycrss Hybrids and Compatibility Relationships Among Selected Sweet Poatao: A Thesissubmitted in Partial Fulfilment of the Requirement for the Post Graduate Diploma, September 1988. Papua New Guinea University of Technology, 1988.