“KAJIAN STATUS HARA TANAH DAN TANAMAN DI PERKEBUNAN TEHJAWA BARAT DAN SUMATERA UTARA”. CR JOURNAL (CREATIVE RESEARCH FOR WEST JAVA DEVELOPMENT) 1, no. 01 (December 31, 2015): 16–30. Accessed May 19, 2024. https://crjournal.jabarprov.go.id/index.php/crj/article/view/3.