edited by David F. Findley
Academic Press, 1978
Buku Teks
David McDowall ... [and others]
Sage, 1981
Buku Teks
Koopmans, L.H.
Academic Press, 1974
Buku Teks
Handika Suhandiana
2016
UI - Skripsi Membership
Muhammad Fakhrillah Abdul Azis
Fakultas Ilmu Komputer Universitas Indonesia , 2020
UI - Skripsi Membership