Piaget, Jean, author
Meridian Book , New York Meridian Book 1960
Buku Teks
Irma Detia Rini, author
Fakultas Ilmu Keperawatan Universitas Indonesia, 2012
UI - Skripsi (Open)
Indah Dwi Lestari, author
2019
UI - Tugas Akhir
Carroll, John B., author
Prentice-Hall, 1964
Buku Teks
Hayakawa, S.I.
London George & Unwin 1959
Buku Teks