Haroun, M., P. Khirstova, G. Abdallah, and C. Tony. “VEGETABLE AND ALUMINIUM COMBINATION TANNAGE: ABOON ALTERNATIVE TO CHROMIUM IN THE LEATHER INDUSTRY”. Suranaree Journal of Science and Technology, vol. 15, no. 2, Aug. 2026, pp. 123-32, https://ph04.tci-thaijo.org/index.php/SUJST/article/view/13395.