Ming, N.-N., Jin, X.-Y., Qiang, L., Yong, S., & Guo, J.-C. (2010). Reversed Phase HPLC Studies on the Change of the Free Amino Acid Content of Tobacco During Ageing. Asian Journal of Chemistry, 18(4), 2573–2578. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/20622