Subagja, H., Saleh, A. and Kustiawan, E. (2020) “Development of Duck Farming in Gumuk Mas District, Jember Regency”, Food and Agricultural Sciences : Polije Proceedings Series, 3(1), pp. 73–77. Available at: https://proceedings.polije.ac.id/index.php/food-science/article/view/178 (Accessed: 28November2021).