Rahajeng, Lusia, Sanga Harapan, Mersy Karlin, and Steven Ketti. “Desain Kurikulum Pendidikan Agama Kristen Lansia Menggunakan Society Centered Design”. Jurnal Shanan 6, no. 1 (March 30, 2022): 1-24. Accessed May 4, 2024. http://ejournal.uki.ac.id/index.php/shan/article/view/3630.