Team, Support. 2021. “Quadrant Interlocking Factorization Algorithm of Hourglass Matrix from Nonsingular Matrix: Olayiwola Babarinsa, Hailiza Kamarulhaili, Azfi Zaidi Mohammad Sofi”. Thai Journal of Mathematics 19 (4):1461–1476. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1247.