Akpabio, E., Ekong, U. S., Uwah, T. O., Ekpa, E. D. ., Ubulom, P. M. E., Jacobs, G. E., & Fred, M. E. (2020). Formulation and Evaluation of Theophylline Sustained Release Tablet using Lasianthera africana gum. Nigerian Journal of Pharmaceutical and Applied Science Research, 5(2), 41–48. Retrieved from https://nijophasr.net/index.php/nijophasr/article/view/125