Widowati, R. ., W. . Sjamsuridzal, A. . Basukriadi, A. . Oetari, E. . Anwar, `V. . Enfinali, E. A. . Rismawanti, and B. A. . Luhur. “Preference of Apis Cerana to Six Pollen Substitutes”. Proceeding ICBB (The International Conference on Bioscience and Biotechnology), vol. 1, no. 1, Oct. 2011, pp. B65-B65, http://www.sunankalijaga.org/prosiding/index.php/icbb/article/view/170.