Proceedings of the 7th International Conference on the Applications of Science and Mathematics 2021 : Sciemathic 2021 - Mustapha, Aida Binti; Asman, Saliza Binti; Jamaian, Siti Suhana; Shamsuddin, Suhadir; Zuhaib Haider Rizvi, Syed (Singapore Springer, 2022)