A. Kakar, W. Akbar, R. Ahmed, A. Kakar, and M. Essa, “Comparative Efficacy of Modafinil and Methylphenidate in Managing Excessive Daytime Sleepiness in Parkinson’s Disease: Results from a Randomized Controlled Trial”, IJBR, vol. 3, no. 5, pp. 741–748, May 2025.