Nur Alfiyan, Wahyu, and Luhur Prasetiyo. “Wakaf Produktif Di Yayasan Addin As-Shiddieq Pacitan Perspektif Total Quality Management (TQM)”. Invest Journal of Sharia & Economic Law, vol. 1, no. 1, May 2021, pp. 97-114, https://jurnal.iainponorogo.ac.id/index.php/invest/article/view/2718.