Islam, S. M. S., & Kafi Majumdar, A. A. (2021). On the Diophantine equations z<sup>2</sup> = k(k<sup>2</sup> + 3) and z<sup>2</sup> = k(k<sup>2</sup> + 12). Journal of Bangladesh Academy of Sciences, 45(1), 127–129. https://doi.org/10.3329/jbas.v45i1.54265