Aprilanto, Andika, and Achmad Krisbiyanto. “The Reflective-Collegial Model Of Teacher Professional Development: An Andragogy-Based Conceptual Framework”. Andragogi: Jurnal Pendidikan Dan Pembelajaran, vol. 5, no. 2, Jan. 2026, pp. 250-63, doi:10.31538/adrg.v5i2.3481.