Leilasariyanti, Y., R. Andriyanty, H. M. U. Sembiring, S. Sugiarti, and E. Alimin. “Halal Products in Context of the Effect of Product Quality and Menu Variety on Purchase Decisions”. International Journal of Economics Development Research (IJEDR), vol. 4, no. 3, July 2023, pp. 1213-22, doi:10.37385/ijedr.v4i3.3873.