YUPITA YUNI; EVILIYANTO; DIAN EQUANTI. PENGARUH PENURUNAN HARGA DAUN KRATOM TERHADAP PENDAPATAN PETANI KRATOM DI DESA NANGA NYABAU KECAMATAN PUTUSSIBAU UTARA. GEO KHATULISTIWA, Indonesia, ID, v. 5, n. 3, p. 211–230, 2025. Disponível em: https://jurnal.fipps.upgripnk.ac.id/index.php/GEOGRAFI/article/view/472. Acesso em: 3 feb. 2026.