Kondee K, Aomumpai S, Prommak C. A Novel technique for Reference Node Placement in Wireless Indoor Positioning Systems based on Fingerprint Technique. ECTI-CIT Transactions [internet]. 2016 Apr. 7 [cited 2026 Mar. 6];9(2):131-4. available from: https://ph01.tci-thaijo.org/index.php/ecticit/article/view/54416