Kawuwung, Stenly, et al. “The Effect of Organic Fertilizer from Coconut Flour Factory Waste on the Growth of Pakcoy (Brassica Chinensis L.) Plants Experiencing Water Stress”. Jurnal Biologi Tropis, vol. 23, no. 2, Dec. 2023, pp. 522-30, doi:10.29303/jbt.v23i2.5773.