The Omani & South Arabian Muslim factor in East Africa : the role of the Zanzibari and Swahili traders in the spread of Islam in Uganda 2026-02-15T15:19:13+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Soghayroun, Ibrahim El-Zein (Dar al-Ulum, 1984)