Hochin, Teruhisa, Yoshihiro Hayashi, Hiroki Nomiya, and Morshed U. Chowdhury. 2018. “Quasi-Optimality under Pseudo F Statistic in Clustering Data”. International Journal of Engineering & Technology 7 (2.28): 320-24. https://doi.org/10.14419/ijet.v7i2.28.13205.