Yip Y. K, Z. R., N. 11, B. A. N, and C. S. “Physiological Changes Following Pollination of Dendrobium Pompadour Flowers”. Malaysian Journal of Science, vol. 27, no. 2, Aug. 2008, pp. 67-74, https://juku.um.edu.my/index.php/MJS/article/view/9208.