Shaikh MA, Shaikh SA, Shaikh FZ. Location Based Services for Remote Education and Health Institutes Using Sum-Difference Signal Patterns. Int. J. Interact. Mob. Technol. [Internet]. 2022 Nov. 29 [cited 2024 Jul. 18];16(22):pp. 4-14. Available from: https://online-journals.org/index.php/i-jim/article/view/35337