BLONG, R.; PAIN, C. The Nature of Highland Valleys, Central Papua New Guinea. ERDKUNDE, [S. l.], v. 30, n. 3, p. 212–217, 1976. DOI: 10.3112/erdkunde.1976.03.05. Disponível em: https://www.erdkunde.uni-bonn.de/article/view/1791. Acesso em: 27 oct. 2025.