Hooijer, Dirk A.; Kurtén, Björn (1984). "Trinil and Kedungbrubus: the Pithecanthropus-bearing fossil faunas of Java and their relative age". Annales Zoologici Fennici. 21 (2): 135–41.
JSTOR23734854.
Jacob, Teuku (1973). "Palaeoanthropological discoveries in Indonesia with special reference to the finds of the last two decades". Journal of Human Evolution. 2 (6): 473–8, IN5–IN11, 479–85.
doi:
10.1016/0047-2484(73)90125-5.
Hooijer, Dirk A.; Kurtén, Björn (1984). "Trinil and Kedungbrubus: the Pithecanthropus-bearing fossil faunas of Java and their relative age". Annales Zoologici Fennici. 21 (2): 135–41.
JSTOR23734854.
Jacob, Teuku (1973). "Palaeoanthropological discoveries in Indonesia with special reference to the finds of the last two decades". Journal of Human Evolution. 2 (6): 473–8, IN5–IN11, 479–85.
doi:
10.1016/0047-2484(73)90125-5.