SONAKSHI GARG, MUKESH SHARMA, AVINASH VIKRAM. A Study of Factors Influencing Permitting and Prohibiting of Permission Based Marketing. European Economic Letters (EEL), [S. l.], v. 14, n. 4, p. 704–708, 2024. DOI: 10.52783/eel.v14i4.2191. Disponível em: https://eelet.org.uk/index.php/journal/article/view/2191. Acesso em: 11 sep. 2025.