Thongchai Mala. 2001. Roles of vesicular arbuscular mycorrhizal fungi associated with soybean on rock phosphate solubilization. Department of Interdisciplinary, Kasetsart University;
Thongchai Mala. (2001) Roles of vesicular arbuscular mycorrhizal fungi associated with soybean on rock phosphate solubilization . Kasetsart University/Bangkok.
Thongchai Mala. Roles of vesicular arbuscular mycorrhizal fungi associated with soybean on rock phosphate solubilization. . Bangkok:Kasetsart University, 2001.
Thongchai Mala. (2001) Roles of vesicular arbuscular mycorrhizal fungi associated with soybean on rock phosphate solubilization . Kasetsart University/Bangkok.