Thitimetharoch, T. and Thammathaworn, A. (2017) “Leaf Anatomy of Coa (Erythroxylum coca Lam,: Erythroxylaceae in Khon Kaen University)(Thai)”, Asia-Pacific Journal of Science and Technology, 12(4), pp. 381–386. available at: https://so01.tci-thaijo.org/index.php/APST/article/view/83899 (accessed: 29 September 2026).