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            5Embryotoxicity of copper and zinc in tropical sea urchin tripneustes gratillaΤόπος έκδοσης Science Diliman (2014)Άρθρο
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            10Socio-economic profile of the sea urchin fishermen in Nalvo, Sta. Maria, Ilocos SurΤόπος έκδοσης UNP Research Journal (2006)Άρθρο


