Denny J.A.
Gerakan mahasiswa : dan politik kaum muda era 80-an
Lembaga Kajian Islam dan Studi (LKiS), 2006
 Buku Teks SO
Muhammad Fahrezi
Pengaruh Gamification Feature Terhadap Brand Equity dan Brand Engagement ( Studi pada pemain Shopee Games ) = The effect of gamification feature toward brand equity and brand engagement ( study on Shopee Games player )
Fakultas Ilmu Administrasi Universitas Indonesia, 2021
 UI - Skripsi Membership
Umar Nur Zain
Penulisan feature
Pustaka Sinar Harapan , 1992
 Buku Teks SO
Umar Nur Zain
Penulisan feature
Pustaka Sinar Harapan, 1993
 Buku Teks SO
Tanpa judul
[Publisher not identified], [Date of publication not identified]
 Buku Klasik