Arif, Sofiyan, and Tongam Sirait. “The Influence of Quality, Price, and Promotion on Interest in Buying PT Sig Precision Interlock Brick Products in Java”. Eduvest - Journal of Universal Studies 5, no. 12 (December 9, 2025): 14498–14514. Accessed February 16, 2026. https://eduvest.greenvest.co.id/index.php/edv/article/view/51617.