Haerul, A.R. 2025. Implementasi Tahapan Personal Selling Salesperson “Optiload Product” pada PT Sanggar Sarana Baja. Community Engagement and Emergence Journal (CEEJ). 6, 5 (Sep. 2025), 3120–3136. DOI:https://doi.org/10.37385/ceej.v6i5.9016.