The Relevance of the Concept of Ujrah in the Commercialisation of Orthodontic Services by Dentists in Baitussalam Sub-district, Aceh Besar Regency. AJIEL - Journal of Islamic Economic Law, [S. l.], v. 3, n. 1, p. 71–93, 2026. DOI: 10.22373/crkjnj46. Disponível em: https://jim.ar-raniry.ac.id/index.php/ajiel/article/view/1045. Acesso em: 21 apr. 2026.