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Judul	:	The effects of nitrogen fertilizer dosages on anatomical characters of ipomoea batatas L. leaf
Pengarang	:	Juwarno, Sumarsono, Siti Samiyarsih
Sumber	:	Jurnal Biosfera Vol. 26 No. 1
Volume	:	26
No	:	1
Perpustakaan	:	pertanian
Abstrak	: