W. S. WAHYUNI, H. S. ADDY, B. ARMAN, and T. C. SETYOWATI, “Synergism of Lumbricus rubellus and Pseudomonas putida Pf-20 in Inducing Resistance to Cucumber Mosaic Virus”, HAYATI J Biosci, vol. 13, no. 3, p. 95, Dec. 2009, doi: 10.4308/hjb.13.3.95.