Stein, Irene Royal jelly : the new guide to nature's richest health food / Irene Stein - London : Thorsons, 1989 - 128 p., [8] leaves of plates : ill., maps ; 22 cm. Koleksi Khas (Dato' Noordin Keling) Includes bibliography (p. 124-125) and index ISBN: 0722521596 Hadiah