Nor Azuwan Yaakob, Dato' Hassan Ahmad : cendekiawan Melayu terulung - xvii, 412 pages : illustrations ; 24 cm Mengandungi bibliografi dan indeks. ISBN: 9789673443307 Subjects--Topical Terms: Hassan Ahmad, Datuk, 1936-2011. ; Civil service - Malaysia - Biography. Dewey Class. No.: 923.5595