Bethell, Zillah
The Song Walker
Bhuana Ilmu Populer, 2023
 Buku Teks SO
Bethell, Zillah
The Song Walker
Bhuana Ilmu Populer, 2023
 Buku Teks
Nowak, Ronald M.
Walker's primates of the world
John Hopkins University Press, 1999
 Buku Referensi
Walker, E.A.
Colonies / E. A. Walker
Cambridge University Press, 1945
 Buku Teks SO
Walker, Shirley
Judith Wright / Shirley Walker
Oxford University Press, 1982
 Buku Referensi