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Yagi SMA. Chemotaxonomical and Palynological Study on Some Sudan Acacias. University of Khartoum; 1988. M.Sc. Forestry.

Yagi SMA. Phytochemical and Toxicological Studies of Some Senna Species. University of Khartoum; 1997. Ph.D. Botany.

Yagi SM, El Tigani S, Adam SEI. Toxicity of Senna Obtusifolia Fresh and Fermented Leaves (Kawal), Some Products from Senna Alata on Rats. Phytotherapy Research. 1998;12:324-330.

Yahia M. Al-Kheir, Al-Tohami MS. Investigation of the molluscicidal activity of certain Sudanese plants used in folk medicine I, II. J. Trop. Med. Hyg. 1979;82:237-247.

Yahia M. Al-Kheir, Salih AM. Investigation of the nature of the molluscicidal factor of croton macrostachyus. Journal of African Medicinal Plants. 1979;2:55-58.

Yankov LK, Hussein Ayoub SM. Algicidal Properties of Tannins. Fitoterapia. 1985;56:227-229.

Yankov LK, Hussein Ayoub SM. Citrullonol, a New Hydroxy-ketotetracyclic Triterpene, Isolated from Neutral Components of the Oil from Citrullus Colocynthis L. Seeds. Comptes Rendus De L'Academie Bulgare Des Sciences. 1975;28:1641-1644.

Yankov LK, Hussein Ayoub SM. Docosanyl acetate and 10-13-dimethylpenta-13-decenial from Peels of Citrullus Colocynthis L. Seeds. Comptes Rendus De L'Academie Bulgare Des Sciences. 1981;34:529-532.

Yankov LK, Hussein Ayoub SM. Investigation of the Fatty Acids from the Seed Oil of Citrullus Colocynthis L. Comptes Rendus De L'Academie Bulgare Des Sciences. 1975;28:209-212.

Yousif G, Iskander GM, Daw El Beit A. Investigation of the Alkaloidal Components in the Sudan Flora. Part III. Fitoterapia. 1983;54:269-272.

Yousif G, Iskander GM, Eisa EB. Alkaloid Components of the Sudan Flora. II Alkaloids of Cadaba Farinosa and C. Rotundifolia. Fitoterapia. 1984;55:117-118.

Yousif G, Iskander GM, Eisa EB. Alkaloid of Cadaba Farinosa nd C. Rotundifolia Fossk. (Capparidaceae): Isolation and Identification. Sudan Journal of Science. 1986;2:5-9.

Yousif G, Iskander GM, Eisa EB. Investigation of the Alkaloidal Components in the Sudan Flora. Part I. Fitoterapia. 1983;54:81-85.

Yousif Taha Gumaa, Abdel Gadir M.A., Mohamed Kheir MZ; Development of Sudanese Exports. Research and Statistics Centre FISBKhartoum: 1986.

Yusuf As'ad Daghir, Compiler, Editor; Al-Usul Al-'Arabiyya Lil-Dirasat Al-Sudaniyya (1874-1967). Beirut: Al-Maktaba Al-Sharqiyya, Sahat Al-Najma; 1968.

Yusuf Fadl Hasan. Al qatl Al-taqsi 'ind Al-Funj. Sudan Notes and Records. 1970;2:32-47.

Yusuf Fadl Hasan; Al-Shulukh wa Asluha wa Wazifatuha fi Sudan Wadi Al-Nil Al-Awsat. Khartoum: Khartoum University Press; 1976.

Yusuf YB, Bahi Al-Din I. Maqboul. Nutritive values of Sudanese foodstuffs (1) Sorghum vulgare (dura). Sudan Journal of Food Science and Technnology. 1972;4:39-45.