Mustikawati, Dewi Rumbaina. “Effect of Plant Growth Promoting Rhizobacteria (pgpr) and Liquid Smoke Against Diseases Attacks and Growth of Pepper (Piper Nigrum L.)”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 31, no. 3 (February 16, 2017): 145–155. Accessed June 2, 2024. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/6883.