Khamim, Lu'lu'atus Saniyya Fadhila. Sanad as an Epistemology of Hadith Validation: The Perceptions of Upper Secondary School Teachers in Kediri City. UNIVERSUM [Internet]. 2026 Jun. 1 [cited 2026 Aug. 18];20(1):40-57. Available from: http://103.134.17.61:8080/index.php/universum/article/view/3824