Hassan, Khairun Ayuni Afiqah, and Jing Wei Yap. “DNA Barcoding of The Penang Hill Slipper Orchid (Paphiopedilum Barbatum)”. Enhanced Knowledge in Sciences and Technology 5, no. 2 (December 17, 2025): 526–537. Accessed April 7, 2026. https://penerbit.uthm.edu.my/periodicals/index.php/ekst/article/view/18667.