طراحی پی آی دی، درس 6، روش کنترل مدل درونی

Round 5 held Dr. Farshad Merrikh-Bayat as possibly unofficial; round 6 read its video descriptions and uploader details and found it is the lecturer's/institution's own channel (: named professor's own channel, university-level control/signals courses he teaches). Title passed the strict checks; oEmbed verified.