Jan, Shaik Gulab, et al. “Effectiveness of Diverse Fun Learning Activities in Enhancing Foundational Numeracy Skills Among Preschool Children With Hearing Impairment”. JOURNAL OF INDIAN EDUCATION, vol. 50, no. 4, Feb. 2026, pp. p.128-148, http://ejournals.ncert.gov.in/index.php/jie/article/view/5082.