A CMOS current-mode squarer/rectifier circuit. - Boonchai Boonchu; Wanlop Surakampontorn (ISCAS (1), 2003)

A new NMOS four-quadrant analog multiplier. - Boonchai Boonchu; Wanlop Surakampontorn (ISCAS (2), 2005)

CMOS voltage-mode analog multiplier. - Boonchai Boonchu; Wanlop Surakampontorn (ISCAS, 2006)