Kim, Il Sung, author
Foreign Languages Publishing House, 1987
Buku Teks
Lee Ju Hee, author
2019
UI - Skripsi (Membership)
Artikel Jurnal
Botombele, Bokonga Ekanga
The Unesco Press, 1976
Buku Teks
Milka Setyani Wijanarti, author
Universitas Indonesia, 2016
UI - Tesis (Membership)