Nur Sitha Afrilia, et al. “OPERATIONALIZING THE PENTAHELIX MODEL THROUGH THE EMPOWERMENT OF KARANGTARUNA: A COLLABORATIVE APPROACH TO SUSTAINABLE URBAN DEVELOPMENT IN SEMARANG CITY”. SEEIJ (Social Economics and Ecology International Journal), vol. 9, no. 2, Oct. 2025, pp. 135-52, doi:10.21512/seeij.v9i2.12574.