Sriwidodo, Toto Subroto, Iman Permana Maksum, Anas Subarnas, Bethary Kesumawardhany, Desak Made Diah Dwi Lestari, and Abd. Kakhar Umar. 2020. “Preparation and Optimization of Chitosan-HEGF Nanoparticle Using Ionic Gelation Method Stabilized by Polyethylene Glycol (PEG) for Wound Healing Therapy”. International Journal of Research in Pharmaceutical Sciences 11 (1):1220-30. https://ijrps.com/home/article/view/769.