Azolla as a Source of Biofertilizer for Sustainable Crop Production – A Literature Review. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. Special Issue 1, p. 1959–1973, 2022. Disponível em: https://ijfans.org/index.php/Journal/article/view/6435. Acesso em: 8 sep. 2026.