“OPTIMALISASI MUTU PENDIDIKAN VOKASI: PENERAPAN TQM DI SMK NURUL QARNAIN”. ALMUSTOFA: Journal of Islamic Studies and Research, vol. 2, no. 2, Dec. 2025, pp. 191 – 205, https://ejournal.bamala.org/index.php/almustofa/article/view/598.