Y. L. Panjaitan, R. B. Y. Hutagalung, V. A. L. Master, J. Sitorus, and N. Ginting, “The Influence of Product Quality, Personal Sales, and Pricing on Purchase Decisions at PT Panca Niaga Jaya Lestari Kisaran”, Injects, vol. 3, no. 1, pp. 55–63, Jun. 2022.