GST AS A MAJOR SOURCE OF PUBLIC FINANCE AND IMPACT OF COVID - 19 ON GST COLLECTION: A STUDY OF PRE-POST LOCKDOWN. International Journal of Food and Nutritional Sciences, [S. l.], v. 10, n. 11, p. 1512–1518, 2021. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/4472. Acesso em: 8 sep. 2026.