Patel, P. R. M. P. and , Mr. V K Solanki (2026) “Search Engine Optimization (SEO) vs. Pay-Per-Click (PPC): A Comparative Study of ROI for Small Businesses”, International Journal of Technical Innovation in Modern Engineering & Science, 12(1), pp. 4–6. Available at: https://www.ijtimes.com/index.php/ijtimes/article/view/3511 (Accessed: 12 May 2026).