1,760 Maizatul Vanisha Bt Masril 2019-05-03 https://onlinelibrary.wiley.com/doi/full/10.1111/j.1757-1707.2009.01008.x Lee, D., Owens, V. N., Boe, A., & Koo, B. C. (2009). Biomass and seed yields of big bluestem, switchgrass, and intermediate wheatgrass in response to manure and harvest timing at two topographic positions. Gcb Bioenergy, 1(2), 171-179. Revised record 01.10.2019.