Dini Julia Sari Siregar. “Nutritional Evaluation of Corn Fodder With Hydroponic System With Different Harvest Days As a Substitute for Concentrate Food”. The International Conference on Education, Social Sciences and Technology (ICESST), vol. 2, no. 2, Nov. 2023, pp. 284-92, doi:10.55606/icesst.v2i2.323.