Abdul Kuddus Ahmad Factors associated with early school withdrawal and retention in Sabah, Malaysia a case study in Kemingan / [microform] : Abdul Kuddus bin Ahmad - Ann Arbor, Mich. : University Microfilms International, 1982 - 5 microfiches ; 11 x 15 cm. Thesis (Ph.D.) - University of Pittsburgh, 1981 ISBN: Y910040067 Subjects--Topical Terms: Elementary schools--SabahRural schools--Sabah