HONG, G., SONG, Z., SHANG, S., XU, X., & WANG, X. (2010). Synthesis, Crystal Structure and Application of Maleopimaric Acid Mono-Ethyl Ester. Asian Journal of Chemistry, 22(6), 4681–4687. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/16823