Manida Phadungkul. 1991. Feasibility studies of planting corn, sorghum and cowpea for livestock in dry season. Faculty of Graduate Studies, Mahidol University;
Manida Phadungkul. (1991) Feasibility studies of planting corn, sorghum and cowpea for livestock in dry season . Mahidol University/Bangkok.
Manida Phadungkul. Feasibility studies of planting corn, sorghum and cowpea for livestock in dry season. . Bangkok:Mahidol University, 1991.
Manida Phadungkul. (1991) Feasibility studies of planting corn, sorghum and cowpea for livestock in dry season . Mahidol University/Bangkok.