N. . Chueakul, M. . Obmasui, J. Sommart, and P. . Auiwattanakul, “Knowledge and Literacy of Health Products and Online Advertising among The Elderly in Bueng Niam sub-district, Muang District, Khon Kaen”, ubruphjou, vol. 14, no. 2, pp. 15–24, Aug. 2025.