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journal of american science
journal of american science impact factor
journal of american science abbreviation
american journal of political science
american journal of plant sciences
journal of south american earth sciences
the american journal of the medical sciences
american journal of environmental sciences
journal of american science, journal of american science impact factor, journal of american science abbreviation, american journal of political science, american journal of plant sciences, journal of south american earth sciences, the american journal of the medical sciences, american journal of environmental sciences
