Assalamah T. The Influence of Brand Ambassador Iqbaal Ramadhan on Parental Decisions in the Digital Community of East Java Smart Parents in Choosing Ruangguru as a Children’s Online Tutoring Media. TC [Internet]. 1Sep.2020 [cited 7May2024];3(02):1-. Available from: https://ejournal.unesa.ac.id/index.php/Commercium/article/view/36275