et. al., Didi Tarmidi,. “The Influence Of Product Innovation And Price On Customer Satisfaction In Halodoc Health Application Services During COVID-19”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 8 (April 24, 2021): 1716–1722. Accessed May 6, 2024. https://turcomat.org/index.php/turkbilmat/article/view/3240.