Roni, N.G.K., AND 		Lindawati, S.A..
" PARTIAL STUDY OF NON SYMBOTIC NITROGEN FIXING BACTERIA FROM RHIZOSFER OF GAMAL AS PLANT GROWTH PROMOITING ON THE LAND OF THREE STRATA SYSTEMS" <em>Pastura</em> [Online], Volume 7 Number 2 (12 January 2019)