Metta Adulprasertsuk. (1993) The Effects of leaf litter decomposition on paddy soil fertility. Mahidol University,:ม.ป.ท.Metta Adulprasertsuk. 1993. The Effects of leaf litter decomposition on paddy soil fertility. ม.ป.ท.:Mahidol University,;Metta Adulprasertsuk. The Effects of leaf litter decomposition on paddy soil fertility. ม.ป.ท.:Mahidol University, 1993. Print.