Biology, Medicine, & Natural Product Chemistry Volume 5 – Number 2 – 2016 ISSN 2089-6514 (paper) | ISSN 2540-9328 (online) CONTENTS Starch-Glycerol Based Edible Film and Effect of Rosella (Hibiscus Sabdariffa Linn) Extract and Surimi Dumbo Catfish (Clarias gariepinus) Addition on Its Mechanical Properties Endaruji Sedyadi, Syafiana Khusna Aini, Dewi Anggraini, Dian Prihatiningtias Ekawati 33 - 40 Optimization of Binocular Microscope with Micro Digital Camera for Measuring Seminiferous Tubules Epithelium Height Sutriyono 41 - 47 Histological Study of Common House Gecko (Hemidactylus frenatus) Regenerated Tail Rakhmiyati, Muhammad Jafar Luthfi 49 - 53 Effect of Addition of Soursop Leaf Extract to Ganyong (Canna edulis Ker.) Starch Edible Film and its application in Red Grape Storage Time Erni Widyastuti, Endaruji Sedyadi, Susy Yunita Prabawati 55 - 59 A Stability Mathematical Model of Nasopharyngeal Carcinoma on Cellular Level Sugiyanto, Fajar Adi Kusumo, Lina Aryati, Mardiah Suci Hardianti 61 - 64