Mohon bantuannya gan, 1. Title: "A comparison of the efficacy of topical tretinoin and low-dose oral isotretinoin in rosacea" Author : Ertl G.A, Levine N, & Kligman A.M. Published in : Archieves of Dermatology (1 March 1994). Vol. 130 No.3. Page: 319- 324. http://archderm.jamanetwork.
