Hadi, Nafik Umurul, Candra Fajri Ananda, Pudjiharjo Pudjiharjo, and Moh. Khusaini. “The Happiness Index As a New and Complementary Measurement of Development As Applied to Each Province of Indonesia”. International Journal of Economics and Financial Issues 8, no. 4 (July 4, 2018): 214–221. Accessed November 15, 2024. https://econjournals.net.tr/index.php/ijefi/article/view/6589.