Bhumika Desai and Dr. Dharmendra Bhatti. In-depth Scrutiny of Facial Expressions and Determination of the Happiness Index in University Students during Academic Lectures: A Thorough Review. IJASCIS [Internet]. 2024 Jan. 31 [cited 2025 Sep. 25];3(1):93-7. Available from: https://sciencetransactions.com/index.php/ijascis/article/view/29