Coba jelasin Lihat pula dari Hierarki kebutuhan Maslow dong

Teori ERG memperluas dan mendalami teori Maslow

Kebutuhan dasar manusia, model Manfred Max-Neef

Koltko-Rivera, Mark E. (2006). Rediscovering the later version of Maslow's hierarchy of needs: Self-transcendence and opportunities for theory, research, and unification. Review of General Psychology 10.4: 302.

Maslow, Abraham H. (1993). Theory Z. In Abraham H. Maslow, The farther reaches of human nature (pp. 270–286). New York: Arkana (first published Viking, 1971). Reprinted from Journal of Transpersonal Psychology, 1969, 1(2), 31–47.