Thannippara, Alex, Sreejith V, S. C. Bagui, and D. K. Ghosh. “A New Method of Construction of E-Optimal Generalized Group Divisible Designs (GGDD)”. Journal of Scientific Research 1, no. 1 (December 14, 2008): 38–42. Accessed March 28, 2024. https://banglajol.info/index.php/JSR/article/view/1697.