Mostafa MAM, Hegazy ASSI, El-Sedfy OMF, Abd El-Rhaman ZM. Characterization and metal loading capacity of humic acids derived from composted rice straw and olive pomace affected by the humification degree. Sains Tanah J. Soil Sci. Agroclimatology. 2021;18(1):1-6. doi:10.20961/stjssa.v18i1.44741