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    Chemical survey of some plants Growing in Qatar  Rizk, A.M.; Heiba, H.I.; Al-Easa, H.S.1989Dataset  &   Report
    Constituents of Plants Growing in Qatar, Part XXX: A New Iridoid from Cistanche Phelypaea (L) COUT  Deyama, T.; Yahikozawa, K.; Al-Easa, H.S.; Rizk, A.M.1995Article
    Constituents of Plants Growing in Qatar, Part XXXI: Lipid constituents of seventeen range plants growing in Qatar  Al-Easa, H.S.; Rizk, A.M.; Heiba, H.I.2002Article
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    Alternative Title: مكونات نباتات دولة قطر . الجزء 28 . الفحص الكيميائي لنبات السيستانكا (الطرثوث)
    
    Deyama, T.; Yahikozawa, K.; Al-Easa, H.S.; Rizk, A.M.1995Qatar UniversityArticle