Andrew, Andrew Stefano. 2023. “Pemetaan Topografi Di Area Perkebunan Kelapa Sawit Wanasari, Kecamatan Muara Wahau, Kabupaten Kutai Timur, Provinsi Kalimantan Timur : Topography Mapping in The Palm Oil Plantation Area of Wanasari, Muara Wahau Subdistrict, Kutai Timur District, East Kalimantan Province”. Buletin Loupe 19 (01):17-26. https://doi.org/10.51967/buletinloupe.v19i01.2419.