Phosphorus and potassium in the tropics - International Conference on Phosphorus and Potassium in the tropics; Puspharajah E.; Sharifuddin H.A.Hamid. (Kuala Lumpur : Malaysian Society of Soil Science, 1981)
Keywords: Soils -- Malaysia -- Phosporus contents -- Congresses; Soils -- Malaysia -- Potassium contents -- Congresses