Noordin, Aminunurrashid, Syahrul Hisham Mohamad@&nbsp;Abd. Rahman, Mohd  Razali&nbsp;Mohamad Sapiee, Muhamad&nbsp;Faizal Yaakub, and Muhammad&nbsp;Fareq Ibrahim. <em>Digital electronics and systems</em>. Teaching and learning series. Melaka: Universiti Teknikal Malaysia Melaka, 2015.