Anggraini Dwi Hartanti, author
2017
UI - Skripsi (Membership)
Daniel Dirgala, author
Sekolah Kajian Stratejik Global Universitas Indonesia, 2023
UI - Tesis (Membership)
Crawford, Adam
Longman, 1998
Buku Teks
Crawford, Adam
Longman, 1998
Buku Teks
Sonny Setiawan, author
2020
UI - Tesis (Membership)