Table 2. Factors and numbers of levels investigated in full factorial design

From

Adsorption Studies of Heavy Metals on Coal Fly Ash Samples from Aqueous Solutions

Ishwari B.K, Kumar P.S, Shivaprasad K.H

Applied Ecology and Environmental Sciences. 2022, 10(1), 25-33 doi:10.12691/aees-10-1-5