Puangdownreong, Deacha. “Optimal PIDA Controller Design for Maglev Vehicle Suspension System by Lévy-Flight Firefly Algorithm: -”. Srinakharinwirot University Engineering Journal 14, no. 1 (May 16, 2019): 12–22. accessed December 6, 2025. https://ph02.tci-thaijo.org/index.php/sej/article/view/152003.