VONGDETH, K., KEOXAMLOUANG, X., BOUNMYXAI , A., & SENGTHONGSA, B. (2024). Tannin Extraction from Leaves of Some Plants. Souphanouvong University Journal Multidisciplinary Research and Development, 10(1), 299–307. https://doi.org/10.69692/SUJMRD1001299