Walean, Ronny Hansje, and Deny Indra Pratama. “Impact of Product Quality, Price, and Promotional Activities on Consumer’s Purchase Decision on a Non-Subsidized NPK Fertilizer Market Leading Brand: Purchase Interest As a Mediator”. Daengku: Journal of Humanities and Social Sciences Innovation, vol. 4, no. 4, June 2024, pp. 667-7, doi:10.35877/454RI.daengku2685.