Topphak, P., Khermkhan, J., and Suwanmaneepong, S. 2023. “Comparison of cost and return between paddy production and rice seeds production of Ban Na Ngam rice mill community enterprise in Chachoengsao province of Thailand”. International Journal of Agricultural Technology 19 (4):1929-38. https://li04.tci-thaijo.org/index.php/IJAT/article/view/10893.