trisuci, hafizah. “UJI AKTIVITAS ANTIBAKTERI AIR PERASAN BUAH TIMUN (CUCUMIS SATIVUS) TERHADAP PERTUMBUHAN BAKTERI PROPIONIBACTERIUM ACNES SECARA IN VITRO”. CHMK Applied Scientific Journal, Vol. 3, no. 1, Jan. 2020, pp. 14-18, http://cyber-chmk.net/ojs/index.php/sains/article/view/754.