Riyanti, Syamsuddin S, Said D, Syarifuddin. Examining the Value of Gratitude in Determining Selling Prices. al. kharaj. j. islam. econ. bus. [Internet]. 2025 Dec. 16 [cited 2025 Dec. 17];7(4). Available from: https://ejournal.iainpalopo.ac.id/index.php/alkharaj/article/view/8457