Iyer Kamlam Gopalkrishnan, Srinivasan Venkatesan. Normative congruence between 1967 and 2002 adaptations of age scale for Indian urban children. ijip [Internet]. 2022 Nov. 5 [cited 2026 Mar. 16];7(4). Available from: https://www.ijip.co.in/index.php/ijip/article/view/3109