Widiyati, Risma, and Emmy Budiartati. “Motivation The Motivation of Volunteer Bangjo Smart House Semarang”. Journal of Nonformal Education and Community Empowerment 4, no. 2 (December 25, 2020): 123-138. Accessed May 18, 2024. http://journal.unnes.ac.id/sju/jnfc/article/view/36452.