جلسه ششم | تحقیق در عملیات | برنامه ریزی صحیح | روش انشعاب و کران

Round 5 held Math classroom as possibly unofficial; round 6 read its video descriptions and uploader details and found it is the lecturer's/institution's own channel (official Payame Noor University mathematics classroom channel). Title passed the strict checks; oEmbed verified.