Maryam Mulyaningsih, R.E. et al. 2019. The Effect of Administration of Longan (DimocarpusLonganL Steud)Leaf Extract Cream on Collagen Density and MMP-1 Expression in the Dermis of BALB/C Mice Exposed to UV-B Rays. Sains Medika: Jurnal Kedokteran dan Kesehatan. 10, 2 (Dec. 2019), 68–74. DOI:https://doi.org/10.30659/sainsmed.v10i2.3341.