Video Perkuliahan – Discrete Time Fourier Transform
Lecture – 8 Discrete Time Fourier Transform

https://www.youtube.com/watch?v=r4Pc-rGBRJA&feature=channel&fbclid=IwAR1_6xDtxWm3x6niffzl9RRPCFaIC9Frxk85AvzplnmlZC4dAgyOL-ZzSZE