Salman Khan, Wazim Khan, Muhammad Ayaz. An Evaluative Study of Practice of Stimulus Variation Skill of Secondary School Teachers in Khyber Pakhtunkhwa, Pakistan. ojs [Internet]. 2020Dec.25 [cited 2026May8];3(4):54-1. Available from: https://www.sjesr.org.pk/ojs/index.php/ojs/article/view/442