Sandi Abdi JJ Pamungkas, Haryadi, Etik Umiyati. Effect of investment, unemployment, and human development index against income inequality (Comparative study of Java Island, Sumatra, and Sulawesi Island). As. Jor. of Pro & Bus Stud. [Internet]. 2024 Jun. 28 [cited 2026 Sep. 30];5(1):99-114. Available from: https://journal.uptm.edu.my/index.php/ajpbs/article/view/306