Talakoti, Ramya Krishna. “Chronotherapeutic Press-Coated Tablets of Tramadol Hydrochloride: Formulation and In Vitro Evaluation”. Asian Journal of Pharmaceutics (AJP) 11, no. 02 (July 7, 2017). Accessed August 16, 2022. https://asiapharmaceutics.info/index.php/ajp/article/view/1277.