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Title: Extraction of Humic Substances from Leonardite = การสกัดสารฮิวมิคจากลีโอนาร์ไดท์ / Arunya Promyo
Authors: Arunya Promyo
Keywords: Humic acid
Organic acids
Issue Date: 2010
Publisher: Chiang Mai : Graduate School, Chiang Mai University, 2010
Gov't Doc #: Th 551.9 A794E
Appears in Collections:SCIENCE: Theses

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