Utomo, Drajat, 		Subagyono, R R Dirgarini, AND 		GUnawan, Rahmat.
" UTILIZATION OF CORN FLOW AMERICA (Zea Mays) AS A SOURCE OF SILICA ON THE MAKING OF Na / SBA-15 CATALYSTES FOR TRANSESTERIFICATION REACTION OF OIL JELANTAH" <em>JURNAL KIMIA MULAWARMAN</em> [Online], Volume 16 Number 1 (25 January 2019)