Sutarno, Sumarsono, Anwar S and Sunarso 2017:
Production of fresh forage in alley cropping legume and elephant grass (Pennisetum purpureum) in Oxisol, Indonesia.
Livestock Research for Rural Development. Volume 29, Article #125.
Retrieved
, from http://www.lrrd.org/lrrd29/7/suta29125.html