praptomo, rudi. 2021. “IMPLEMENTATION OF VALUE PROPOSITION CANVAS (VPC) AS A DIGITAL MARKETING STRATEGY IN BATIK GIRI ALAM”. JURNAL ILMIAH BETRIK : Besemah Teknologi Informasi Dan Komputer 12 (1), 20-28. https://doi.org/10.36050/betrik.v12i1.289.