Galileo Budi Cendekia, M.; Zahroh, N.; Fauziah, N.; Cudmore Gilman, A. Integrating Marbel Digital Media into Teacher Professional Development to Enhance Competencies in Delivering Psychoeducational Guidance Services. jbki 2026, 6 (1), 106-118. https://doi.org/10.53915/jbki.v6i1.106.