Coba jelasin Literatur dari Ekspedisi Papua Selatan (1907) dong

Ballard C, Vink S, Ploeg A. 2001. Race to the Snow: Photography and the Exploration of Dutch New Guinea 1907-1936. Amsterdam: KIT Publishers.

Van den Broek AJP. "Das Skelett eines Pesechem", dalam: Nova Guinea 7, buku 3, hal. 233-276. Leiden: E.J. Brill, 1918.

Souter G. 1966. New Guinea: The Last Unknown. New York: Taplinger.