Tagutanazvo, P. O., and R. . Bhagwandeen. “Physical Science Teachers’ Understanding of Strategies for Teaching Critical Thinking in Mpumalanga Province”. International Journal of Learning, Teaching and Educational Research, vol. 21, no. 5, May 2022, pp. 446-62, https://www.ijlter.myres.net/index.php/ijlter/article/view/1334.