principal of quality (1): quality improvement تحسين الجودة

Round-13 hunt: picked; source: named-course long-video search (round-12 queries, single-hit channels, second prefilter); channel screens (sellers/exam/re-upload/devotional/vendor/events), provenance check, vendor/seller/devotional recheck and quality tier C + tier-C depth check passed; strict per-title check + final strict pass; oEmbed verified.

A 26-minute video from د. أحمد عبدالآخر: “principal of quality (1): quality improvement تحسين الجودة”.

Video by د. أحمد عبدالآخر, played through YouTube's embedded player.