-
1Academic Journal
المؤلفون: Hohls, T., Shanahan, P. E., Clarke, G. P.Y., Gevers, H. O.
المصدر: South African Journal of Plant and Soil ; volume 12, issue 4, page 133-139 ; ISSN 0257-1862 2167-034X
-
2Academic Journal
المؤلفون: Hohls, T., Clarke, G. P.Y.
المصدر: South African Journal of Plant and Soil ; volume 13, issue 3, page 74-76 ; ISSN 0257-1862 2167-034X