Ong, Siew Im Pamela. One man's will : a portrait of Dato' Sir Onn bin Ja'afar / Pamela Ong Siew Im. - The author 1998. 7396 Subjects--Topical Terms: Onn bin Ja'afar, Dato' Sir, 1895-1962. LC Class. No.: DS597.15 / O6Ong.