{{cite journal | last1=Adak | first1=T. | author2=K. Kumar | author3=A. Singha | author4=S. K. Shukla | author5=V. K. Singh | year=2014 | title=ASSESSING SOIL CHARACTERISTICS AND GUAVA ORCHARD PRODUCTIVITY AS INFLUENCED BY ORGANIC AND INORGANIC SUBSTRATES | journal=Journal of Animal and Plant Sciences | volume=24 | issue=4 | pages=1157-1165 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-166}}