Aphiphon Pookpakdi, and Harisadee Pataradilok. “Response of Genotypes of Mungbean and Blackgram to Planting Dates and Plant Population Densities”. Agriculture and Natural Resources 27, no. 4 (December 30, 1993): 395–400. accessed August 28, 2026. https://li01.tci-thaijo.org/index.php/anres/article/view/241648.