Factors Influencing Consumers’ Willingness to Pay for Premium Online Education Services of Nutrition Science. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 1, p. 2400–2425, 2022. Disponível em: https://www.ijfans.org/index.php/Journal/article/view/4936. Acesso em: 9 aug. 2026.