1.
Piter Nizu Kekry B, Fahmi M. Economic Facts Of Sumatra And Kalimantan Islands For 10 Years. Jurnal sostech [Internet]. 2021Nov.15 [cited 2024Oct.23];1(11):1.437-43. Available from: https://sostech.greenvest.co.id/index.php/sostech/article/view/235