Tanjung, K.R. 2022. Influence of entrepreneurial and marketing behavior on the income of the photocopying business of Palano Jaya Medan Helvetia. Digital Business: Tren Bisnis Masa Depan. 13, 1 (Mar. 2022), 20–26. DOI:https://doi.org/10.59651/digital.v13i1.25.