ابو العباس بن الرومية العشاب : سيرته وعصره ونشاطه العلمي من خلال كتابه (الرحلة النباتية) == Abo Al - Abbas bn Al - Romiya the man of Herbs his Life History , His age , and His Scientific Activities And his book (( Al - Rihla Al - Nabatiya ))561 A.H - 637 A.H / 1165 A.D - 1239 A.D
