VERMA, Manohar Lal. ‘g’ by Dropping Method. SCHOOL SCIENCE, [S. l.], v. 56, n. 1, p. p.28–30, 2018. Disponível em: http://ejournals.ncert.gov.in/index.php/SS/article/view/2632. Acesso em: 10 jul. 2025.