Pantip Vittayapun. (1990) A study on properties of peat compost compared with water hyacinth compost. Mahidol University,:ม.ป.ท.Pantip Vittayapun. 1990. A study on properties of peat compost compared with water hyacinth compost. ม.ป.ท.:Mahidol University,;Pantip Vittayapun. A study on properties of peat compost compared with water hyacinth compost. ม.ป.ท.:Mahidol University, 1990. Print.