edited by Neil J. Salkind
Sage, 2011
Buku Teks
edited by Kathleen M. Cauley and Gina M. Pannozzo
McGraw-Hill, 2013
Buku Teks
Kinanti Desya Febrianti, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2023
UI - Skripsi (Membership)
Santrock, John, author
McGraw-Hill , 2018
Buku Teks
edited by David Nice
Councils and Education Press, 1986
Buku Teks