Haruna, Ahmed Osumanu. Enhancing rice yield : using organic and inorganic amendments / Ahmed Osumanu Haruna, Palanivell Perumal, Nik Muhamad Ab. Majid. - Serdang, Selangor : Universiti Putra Malaysia Press, 2017. - x, 306 p. : 24 cm. Includes bibliographical references and index ISBN: 9789673447541 Subjects--Topical Terms: Rice--Research.Rice--Soils.