Frayco, Joenil G., et al. “THE EFFECTS OF NATURALLY-FERMENTED ORGANIC CONCOCTIONS ON THE GROWTH AND YIELD OF HYDROPONIC LETTUCE (Lactuca Sativa L.)”. SDSSU MULTIDISCIPLINARY RESEARCH JOURNAL, vol. 10, no. 1, Nov. 2023, pp. 10-15, doi:10.69546/3l6s8003.