Yusuf, A.A. (2014) “Facial Landmark Detection and Estimation under Various Expressions and Occlusions”, International Journal of Sciences: Basic and Applied Research (IJSBAR), 18(2), pp. 40–50. Available at: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/3055 (Accessed: 4 April 2026).