Single-input and three-output current-mode biquadratic filters using multiple-output OMAs. - Worapong Tangsrirat; Sumalee Unhavanich; Teerasilapa Dumawipata; Wanlop Surakampontorn (APCCAS (2), 2002)

Design of active-only highpass and bandpass leapfrog filters using multi-current-output differentiators. - Worapong Tangsrirat; Teerasilapa Dumawipata; Sumalee Unhavanich; Wanlop Surakampontorn (ICECS, 2003)

Actively Simulated Floating Lossless Inductor for Short Range Wireless Communication. - Pitchayanin Moonmuang; Tattaya Pukkalanun; Sumalee Unhavanich; Worapong Tangsrirat (J. Mobile Multimedia, 2019)