Nur Farahhim Abd Rahman, Azlina Muhsin, and Norhaida Che Azmi, “Evaluation of Clinacanthus nutans leaves extract on Prothrombin Time and Activated Partial Prothrombin Time test”, Int. J. Res. Pharm. Sci., vol. 11, no. 1, pp. 241–246, Jan. 2020.