This journal is managed by the Agricultural and Biosystem Engineering Study Program and the Environmental Science Study Program, Faculty of Engineering and Science, Ibn Khaldun University, Bogor. The journal publication period is twice a year, in June and December. Relibi Journal is a scientific journal published periodically which contains scientific articles, conceptual thoughts, and reviews in the fields of environmental management, biosystem engineering and agricultural mechanization. Reviewers conduct a review process on every scientific article published in the RELIBI journal. Scope : Natural Resources and Environmental Management Biosystem Engineering Agricultural Mechanization Environmental Engineering Waste Management