BANI, Aplonia; BENU, Fredrik; KOTTA, Herry. Willingness To Pay (WTP) for environmental services of well water sources in Kupang City . Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management), Bogor, ID, v. 10, n. 2, p. 173–182, 2020. DOI: 10.29244/jpsl.10.2.173-182. Disponível em: https://journal.ipb.ac.id/jpsl/article/view/27851. Acesso em: 13 jan. 2026.