الفيديوات

• Chapter 1 Part 155:27
• Chapter 1 Part 246:01
• Chapter 256:00
• Chapter 301:10:12
• Class : Tutorial 1&201:12:43
• Chapter 440:59
• Class : Review ch1/ch2 mid exam part one01:25:39
• Class : Review exam mid ch 3 / ch 458:14