Silalahi, Flora, Sri Ekawulandari, and Ristina br Surbakti. “Utilization of E-Catalog to Increase Sales of Sand and Stone Materials for Road Paving Contractors: A Case Study of PT. Pioneer”. Journal Boas : Business, Economics, Accounting And Management 3, no. 02 (May 30, 2025): 48–50. Accessed April 30, 2026. https://journal.cdfpublisher.org/index.php/boas/article/view/363.