Gibran, R. N., F. Nursandi, and A. Zakia. “Testing the Effectiveness of Biological Agents As Biofertilizers on the Growth of Two Rice Varieties (Oryza Sativa L.) in Screen House”. Journal of Tropical Crop Science and Technology, vol. 3, no. 2, Oct. 2021, pp. 108-25, doi:10.22219/jtcst.v3i2.29743.