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Soraya Ruamrungsri. 1997. Physiological studies of plant nutrition and metabolism in Narcissus cv. 'Garden Giant'Soraya Ruamrungsri. Graduate School of Science and Technology, Niigata University;
Soraya Ruamrungsri. (1997) Physiological studies of plant nutrition and metabolism in Narcissus cv. 'Garden Giant'Soraya Ruamrungsri . Niigata University/[S.l.].
Soraya Ruamrungsri. Physiological studies of plant nutrition and metabolism in Narcissus cv. 'Garden Giant'Soraya Ruamrungsri. . [S.l.]:Niigata University, 1997.
Soraya Ruamrungsri. (1997) Physiological studies of plant nutrition and metabolism in Narcissus cv. 'Garden Giant'Soraya Ruamrungsri . Niigata University/[S.l.].