AZURA, Rodel B.; TAREPE, Dennis A.; BORRES, Mark S.; PANDUYOS, Jocelyn B. THE DENSITY OF PRIMES LESS OR EQUAL TO A POSITIVE INTEGER UP TO 20,000: FRACTAL APPROXIMATION. SDSSU MULTIDISCIPLINARY RESEARCH JOURNAL, [S. l.], v. 1, n. 2, p. 109–117, 2013. DOI: 10.69546/77r97086. Disponível em: https://smrj.nemsu.edu.ph/index.php/SMRJ/article/view/73. Acesso em: 19 jul. 2026.