Nirmalendu Das. “Wonder Findings of Number of Cells in a Body Including Sexual Cells, Remedy of Corona Virus, Increase of Memory, and Other Cells by Couple System”. Global Journal of Science Frontier Research, vol. 20, no. C3, Mar. 2020, pp. 1-34, https://journalofscience.org/index.php/GJSFR/article/view/2681.