Hikmawanti, N. P. E., Hanani, E., Maharani, S. . and Putri, A. I. W. (2021) “Piperine Levels in Java Chili and Black Fruits Extracts from Regions with Different Altitude”, Jurnal Jamu Indonesia, 6(1), pp. 16–22. doi: 10.29244/jji.v6i1.176.