Extraction of fulvic acid by citric acid–ethanol method and its biochemical activity
2011 ◽
Vol 26
◽
pp. S158-S161
◽
2000 ◽
Vol 51
(4)
◽
pp. 655-666
◽
Keyword(s):
1960 ◽
Vol 23
(5_6)
◽
pp. 348-354
Keyword(s):