Nur Sitha Afrilia et al. 2025. 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). 9, 2 (Oct. 2025), 135–152. DOI:https://doi.org/10.21512/seeij.v9i2.12574.