Vicki Dwi Purnomo, and Jumadi. “Legal Protection Against Consumers Experiencing Price Differences Between Labels Prices and Self-Service Cashiers in the District Sleman”. Formosa Journal of Social Sciences (FJSS) 2, no. 2 (June 30, 2023): 291–306. Accessed September 15, 2024. https://journal.formosapublisher.org/index.php/fjss/article/view/4575.