WIDIASTUTI, H., N. SUKARNO, and L. K. DARUSMAN. “Protein Patterns in Arbuscular Mycorrhizal Roots and Non-Mycorrhizal Roots of Oil Palm Seedling”. Microbiology Indonesia, vol. 1, no. 1, Mar. 2010, p. 3, doi:10.5454/mi.1.1.3.