n Ondersoek na die verband tussen ruimtelike verhoudingsinsigte en die akademiese prestasie van eerstejaarstudente by Visser, Johan

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Development of a transendothelial shuttle by macrophage modification by Visser, Johan Georg

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Manipulation of macrophage phagocytosis - development of an endogenous delivery system by Visser, Johan Georg

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A study of genomic variation in and the development of detection techniques for potato virus Y in South Africa by Visser, Johan Christiaan

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A study of the strain evolution and recombination of South African isolates of Potato virus Y by Visser, Johan Christiaan

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n Geslagsendokrinologiese ondersoek na die seisoenaliteit van ramme van vyf verskillende skaap- en bokrasse by Visser, Johan H.(Johannes Hendrik)

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