Dr. Ir. Edwan Kardena wrote a recommendation letter for Mr. Ir. Mega Anthonius Nainggolan based on his work on a bioremediation project at Muara Badak - VICO. The letter stated that Mr. Nainggolan demonstrated good understanding of practical microbiology through his preparation of biological mass on-site. He also successfully supervised the one-year project through all stages. Additionally, Mr. Nainggolan worked hard, communicated well, and adapted easily to new environments. Based on his initiative and skills displayed on the project, Dr. Kardena recommended Mr. Nainggolan for work involving environmental remediation, especially at oil companies or mines dealing