SINGH , Kamaldeep. Introduction to gymnosperms, general characters, life cycle, diversity and origin of gymnosperms. International Journal for Research Publication and Seminar, [S. l.], v. 12, n. 2, p. 119–125, 2021. Disponível em: http://jrps.shodhsagar.com/index.php/j/article/view/131. Acesso em: 21 nov. 2024.