Anggraeni RT, Yumena N. An Analysis of Organizational Efficiency and Productivity National Zakat Management with Two-Stage Method Data Envelopment Analysis and Malmquist Productivity Index. iconz [Internet]. 2022 Feb. 7 [cited 2026 Oct. 26];:555-76. Available from: https://iconzbaznas.com/submission/index.php/proceedings/article/view/302