“Comparative Study of the Chemical Constituents of Bitter Kola (Garcinia Kola) and Cola Nut (Cola Acuminata) Seeds Extracts: , kola, isolation, purification, chromatography”. (2017) Zimbabwe Journal of Science and Technology, 12(1), pp. 110–116. Available at: https://journals.nust.ac.zw/index.php/zjst/article/view/113 (Accessed: 15 September 2026).