Nagar, P. S. (1973). Curricular achievement and automated teaching. Bharatiya Vidya Prakashan.
Chicago-referens (17:e uppl.)Nagar, Prabhu Shanker. Curricular Achievement and Automated Teaching. Varanasi: Bharatiya Vidya Prakashan, 1973.
MLA-referens (8:e uppl.)Nagar, Prabhu Shanker. Curricular Achievement and Automated Teaching. Bharatiya Vidya Prakashan, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.