Harahap, Abdullah, author
Sanjaya, [Date of publication not identified]
Buku Teks
Stine, R.L., author
Gramedia Pustaka Utama , 2018
Buku Teks
E. Senaya, author
Pustaka Ekspresi, 2024
Buku Teks
E. Senaya, author
Pustaka Ekspresi, 2024
Naskah
Humairah Hutami, author
Fakultas Psikologi Universitas Indonesia, 2022
UI - Skripsi (Membership)