Putri R, Y. 2020. Optimation Hydroxypropyl Methylcellulose (HPMC) and Carbopol in Peel-Off Gel Mask Antioxidant Jamblang Leaf Extract (Syzygium cumini L.). Jurnal Kesehatan dr. Soebandi. 8, 2 (Oct. 2020), 164–169.