F. Zakry, P. Ammal, M. Malahubban, A. R. Faridah, and A. Umar, “Selecting the most effective plant growth-promoting bacteria from oil palm (Elaeis guineensis Jacq) roots: Plant growth-promoting bacteria from oil palm”, J Bangladesh Agric Univ, vol. 17, no. 3, pp. 344–348, Sep. 2019.