Sutawi S, Karmiyati D, Iswatiningsih D. The Happiness of Smallholder Layer-Chicken Farmers in Rural of East Java, Indonesia. Trop. Anim. Sci. J. [Internet]. 2020Sep.3 [cited 2024May2];43(3):282-90. Available from: https://jai.ipb.ac.id/index.php/tasj/article/view/29807