Hermina Sutami
Linguistik Sinika - Chinese Linguistic Sebuah Pengantar
Yayasan Pustaka Obor Indonesia, 2023
 Buku Teks SO
Householder, Fred W.
Linguistic speculations
Cambridge University Press, 1972
 Buku Teks SO
Melady, Thomas Patrick
Profiles of African leaders
Macmillan, 1961
 Buku Teks
Abidemi Olufemi Adebayo
African culture and the gains of cultural inclusivity in the age of globalization
OMNES, 2019
 Artikel Jurnal
Parrinder, Geoffrey
African traditional religion
Hutchinson's University Library, 1954
 Buku Teks