Haryoto, H.; Mujiyati, D. N.; Wibowo, A. IN VITRO POTENTIAL OF A-AMYLASE ENZYME INHIBITION OF A COMBINATION OF ETHANOL EXTRACT OF YAKON POTATO LEAVES (SMALLANTHUS SONCHIFOLIUS) AND KARAS TULANG ROOTS (CHLORANTHUS ERECTUS) AND ITS PHYTOCHEMICAL SCREENING. J. of World Future Medicine, Health and Nursing 2026, 4, 416-429.