Yaumalika, Mutiara, et al. “EFFICACY OF SEVERAL MULTIPLE LIQUID BIOFERTILIZERS ON THE GROWTH AND PRODUCTION OF SWEET CORN (Zea Mays L. Saccharata)”. JURNAL AGRONIDA, vol. 3, no. 1, Jan. 2018, doi:10.30997/jag.v3i1.1010.