Artikel Jurnal
Hanisa Purwantari, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2021
UI - Skripsi (Membership)
American Psychological Association, 2018
Majalah, Jurnal, Buletin
Hahn,Milton E.
McGraw-Hill Book Co., 1955
Buku Teks
Neukrug, Edward S., author
Brooks/Cole Cengage Learning, 2012
Buku Teks