Triyason, Tuul, and Pisal Setthawong. “Comparing the effects of various smartphones on the accuracy of Wi-Fi based proximity estimation approaches in an outdoor setting”. Asia-Pacific Journal of Science and Technology 22, no. 3 (September 30, 2017): APST–22. accessed April 22, 2026. https://so01.tci-thaijo.org/index.php/APST/article/view/101490.