Saxena, Astha, and Alka Behari. “Educational Change and Teachers’ Pedagogical Content Knowledge (PCK): Integration for Professional Development”. INDIAN EDUCATIONAL REVIEW 51, no. 2 (July 31, 2013): p. 43–62. Accessed August 19, 2025. http://ejournals.ncert.gov.in/index.php/ier/article/view/2688.