Aphipan Pookpakdi, Prachya Rodjakhen, & Phadungsith Inchaiya. (1991). On-farm Preliminary Study on the Possibility of Establishing soybean as Sole Crop or Intercropping with Rice under Saturated Soil Culture. Agriculture and Natural Resources, 25(3), 275–281. retrieved from https://li01.tci-thaijo.org/index.php/anres/article/view/241974