Simarat, S., & Gibson, T. (1984). Proceedings of seminar on "viable farming systems for the infertile uplands of North-East Thailand" held at Central Library, Khon Kaen University, Thailand between 26-29th November 1984. Khon Kaen University].
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিSimarat, Srchint, এবং T. Gibson. Proceedings of Seminar on "Viable Farming Systems for the Infertile Uplands of North-East Thailand" Held at Central Library, Khon Kaen University, Thailand Between 26-29th November 1984. [Thailand: Khon Kaen University], 1984.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিSimarat, Srchint, এবং T. Gibson. Proceedings of Seminar on "Viable Farming Systems for the Infertile Uplands of North-East Thailand" Held at Central Library, Khon Kaen University, Thailand Between 26-29th November 1984. Khon Kaen University], 1984.