Muhammad Mushtaq, Nawazish Ali Shah, Ghulam Muhammad, and Gul-e-Zehra Rizve. 2009. “Calculation of Potential Flow Around an Oblate Spheroid Using Indirect Boundary Element Method”. Agriculture and Natural Resources 43 (4). Bangkok, Thailand:822-32. https://li01.tci-thaijo.org/index.php/anres/article/view/244764.