Character Education of Islamic Boarding School Students in the 4.0 Industrial Revolution Era : Literature Review: Pendidikan Karakter Siswa Pondok Pesantren Di Era Revolusi Industry 4.0: Literature Riview . halaqa [Internet]. 2022 July 21 [cited 2026 Nov. 12];6(1):59-65. Available from: https://halaqa.umsida.ac.id/index.php/halaqa/article/view/1591