Dika Meiyani, author
Fakultas Ilmu Administrasi Universitas Indonesia, 2021
UI - Skripsi Membership
Shelly, Gary B., author
Course Technology, Cengage Learning, 2013
Buku Teks
Jane Primaletta, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1987
UI - Skripsi (Membership)
Leli Dwirika, author
1989
UI - Skripsi (Membership)
Abdul Muta`ali, author
RajaGrafindo Persada, 2018
Buku Teks