T. S. . Nipun, A. . . Khatib, Q. U. . Ahmed, and I. E. . . Redzwan, “RAPID ANALYSIS OF ALPHA-GLUCOSIDASE INHIBITORY ACTIVITY OF PSYCHOTRIA MALAYANA JACK LEAF APPLYING INFRARED FINGERPRINTING”, Inter. J. All. Heal. Sci., vol. 5, no. 1, p. 2144, Apr. 2021.