Khonkayan, Sutarat, Sudarat Jonsonchai, and Saksit Namang. “Comparative Leaf Epidermal Anatomy of Tribe Ruellieae (Acanthaceae) in Northeastern Thailand”. Science Essence Journal 35, no. 2 (August 31, 2019): 61–76. Accessed November 10, 2024. https://ejournals.swu.ac.th/index.php/sej/article/view/11154.