1. Galal, T.M., E.A. Farahat, M.M. El-Midany and L.M. Hassan, 2016. Demography and size structure of the giant milkweed shrub calotropis procera (Aiton) W.T. aiton, Rendiconti Lincei, 27: 341-349.
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2. Galal, T.M., E.A. Farahat, M.M. El-Midany and L.M. Hassan, 2016. Nutrients and heavy metals accumulation by the giant milkweed calotropis procera (Aiton) W.T. Aiton in urbanized areas, Egypt. Rendiconti Lincei, 27: 241-250.
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3. Farahat, E.A., T.M. Galal, M.M. El-Midany and L.M. Hassan, 2016. Phenology, biomass and reproductive characteristics of calotropis procera (Aiton) W.T. aiton in South Cairo, Egypt. Rendiconti Lincei, 27: 197-204.
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4. Eid, E.M., T.M. Galal, M. Dakhil and L.M. Hassan, 2016. Modeling the growth dynamics of pistia stratiotes L. populations along the water courses of south nile delta, Egypt. Rendiconti Lincei, 27: 375-382.
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5. Hassan, L.M., T.M. Galal, E.A. Farahat and M.M. El-Midany, 2015. The biology of calotropis procera (Aiton) W.T. Trees, 29: 311-320.
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6. Galal, T., K. Shaltout and L.M. Hassan, 2012. The Egyptian Northern Lakes: Habitat Diversity, Vegetation and Economic Importance. LAP Lambert Academic Publishing, Germany, ISBN: 9783659105319.