berutu prekdisampangate, Iswahyudi, Siregar DS. Mapping Thickness and Maturity Level Of Peat in The Simpang Wie Village, East-Langsa Sub-district, Langsa City. Petrop [Internet]. 2020Sep.20 [cited 2024May4];7(2):174-8. Available from: https://talenta.usu.ac.id/jpt/article/view/3964