Rāingān Kānprachum thāng Wichākān Kasētsāt, khrang thī 6, Sākhā Sētthasāt Kasēt, na Mahāwitthayālai Kasētsāt, 30 Makarākhom - 2 Kumphāphan 2510 = The proceedings of the Sixth National Conference on Agricultural Sciences, Agricultural Economics at Kasetsart University, Bangkhen, Bangkok, January 30 - February 2, 1967
doi Sathaban Wichai Chaokhao Changwat Chiang Mai ruam kap Khrongkan Sưsan phưa Kanphatthana Thisung Thai/WIF, Kong Khuapkhum Phưt Septit, Samnakngan Po. Po. So
'Ēkkasān prakō̜p kānsammanā rư̄ang "Kǣt" kap sinkhā kasēt Phāk Nư̄a : wan thī 17 Kumphāphan 2538 na Hō̜ng Nopphakao, Rōngrǣm Ti 'Emphrǣt, Čhangwat Chīang Mai