Wicaksono, Putra Bangun, and Rinawidiastuti Rinawidiastuti. 2022. “Kadar Tanin, Berat Telur, Indeks Telur, Dan Berat Kerabang Telur Itik Yang Disamak Ektrak Etanol Kulit Manggis (Garcia Mangostana L ): Tannin Content, Egg Weight, Egg Index, and Weight of Tanned Duck Egg Centipede Mangosteen Skin Ethanol Extract (Garcia Mangostana L )”. Jurnal Riset Agribisnis Dan Peternakan 7 (2), 56-64. https://ebook.umpwr.ac.id/index.php/jrap/article/view/3884.