Singh, H. ., A. S. . Thakur, and B. L. . Sharma. “Primary Pterygium – Comparison of Limbal Conjunctival Autografting Surgery Versus Intra Operative Mitomycin - C (0.02%) After Excision of Primary Pterygium”. National Journal of Community Medicine, vol. 2, no. 03, Dec. 2011, pp. 331-4, https://njcmindia.com/index.php/file/article/view/1916.