Electronically tunable voltage-mode Elliptic third-order ladder low-pass filter using simple OTA. - Aphinat Tiamsuphat; Pipat Prommee (ISPACS, 2014)

Electronically tunable MOS-only current-mode high-order band-pass filters. - Pipat Prommee; Aphinat Tiamsuphat; Muhammad Taher Abuelma'atti (Turkish J. Electr. Eng. Comput. Sci., 2017)

Low-complexity Chebyshev High-pass Filter based on OTA-C. - Natapong Wongprommoon; Aphinat Tiamsuphat; Pipat Prommee (TSP, 2020)