TY  - BOOK
AU  - Raana,Irfan Mahmud
TI  - Economic system under Umar the Great: a treatise on Muslim economy in early seventh century 
PY  - 1970///
CY  - Lahore
PB  - Sh. Muhammad Ashraf
KW  - 'Umar ibn al-Khattab,
KW  - Economics
KW  - Religious aspects
KW  - Islam
ER  -