Panpean, C., Prakobkaew, P., Sumpavakup, C., Songtrai, S., Watjanatepin, N., Chaiyaphun, K., & homjan, jeerawan. (2026). Improving the PQ Harmonic Detection Method for Active Power Filters in Single-Phase Power Systems. ECTI Transactions on Electrical Engineering, Electronics, and Communications, 24(1). https://doi.org/10.37936/ecti-eec.2026241.261151