Rigina Nilandrani, author
2017
UI - Tesis (Membership)
Nasution, M. Adham, author
Universitas Sumatra Utara, 1988
Buku Teks
Variscia Permata Putri, author
Fakultas Teknik Universitas Indonesia, 2022
UI - Skripsi (Membership)
United Nations , 1991
Buku Teks
Edward, David V., author
Holt, Rinehart and Winston, 1969
Buku Teks