Poltak Pardamean Simarmata, Doris Yolanda Saragih, & Hengki Mangirng Parulian Simarmata. (2026). Green Material & Process and Green Packaging as Drivers of Tourists’ Sustainable Purchase Intention: Evidence from a PLS-SEM Study in Lake Toba, Indonesia. Manajemen Kreatif Jurnal, 4(3), 106–128. https://doi.org/10.55606/makreju.v4i3.4450