Suntorn Wittayakun. 1999. Annual ryegrass (Lolium multiflorum Lam.) : low cost grazing strategy and baleage feeding management for dairy cattle. Department of Animal and Dairy Sciences, Mississippi State University;
Suntorn Wittayakun. (1999) Annual ryegrass (Lolium multiflorum Lam.) : low cost grazing strategy and baleage feeding management for dairy cattle . Mississippi State University/Mississippi.
Suntorn Wittayakun. Annual ryegrass (Lolium multiflorum Lam.) : low cost grazing strategy and baleage feeding management for dairy cattle. . Mississippi:Mississippi State University, 1999.
Suntorn Wittayakun. (1999) Annual ryegrass (Lolium multiflorum Lam.) : low cost grazing strategy and baleage feeding management for dairy cattle . Mississippi State University/Mississippi.