Lin , Yu-Ting. “A STUDY OF DUTCH SIEGE TACTICS AND FORTIFICATION DESIGNS IN ASIA DURING THE 17TH CENTURY”. PUPIL: International Journal of Teaching, Education and Learning (May 20, 2024): 306–311. Accessed February 24, 2025. https://grdspublishing.org/index.php/PUPIL/article/view/2464.