Zacharias, Franziska
Springer, 2012
eBooks
Jolly, David
Cambridge University Press, 1984
Buku Teks
Alifa Handriane
Fakultas Psikologi Universitas Indonesia, 2021
UI - Makalah dan Kertas Kerja
Shepherd, Andrew
Taylor and Francis, 2001
Buku Teks
edited by Irene Wormell
Taylor Graham , 1987
Buku Teks