{{cite journal | last1=Kurniawan | first1=W. | author2=Hardianto | author3=A. Ramdani | author4=A. Bain | author5=T. Bachtiar | author6=T. Wahyono | year=2022 | title=INFLUENCES OF MANURE AND BIOCHAR ON BIOMASS YIELD AND NUTRIENT VALUE OF PENNISETUM PURPUREUM CV. MOTT GROWN ON POST-NICKEL-MINING SOIL | journal=Journal of Animal and Plant Sciences | volume=32 | issue=5 | pages=1306-1316 | doi=10.36899/JAPS.2022.5.0537 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=AG-21-0014}}