[1]
Wongchana, B., Issarakraiasila, M. and Maneepong, S. 2011. Nitrogen and Zinc on Growth and Nutrient Concentrations in Leaf of Pummelo cv. Kao - thongdee (Citrus maxima (Burm.) Merr . Thai Agricultural Research Journal. 29, 3 (Dec. 2011), 248–261. DOI:https://doi.org/10.14456/thaidoa-agres.2011.19.