A. A. Rashid, N. K. Devaraj, A. H. A. Manap, A. A. Mohd Abdullah, and F. Mohamad, “A Rare Case of Twins with Bilateral Congenital Ptosis – A Case Report”, Int. J. Hum. Health Sci., vol. 4, no. 2, pp. 142–144, Jan. 2020.