Handayani, S. and Iqbal, M.N. 2026. The implementation of the sale and purchase agreement in the all-you-can-eat system: A study of consumer protection law no. 8 of 1999 and the perspective of the shafi’i school. Journal of Law Science. 8, 1 (Jan. 2026), 79-89. DOI:https://doi.org/10.35335/jls.v8i1.6337.