During the transition from the pandemic to the COVID-19 endemic, the Library of UMMI needs to analyze the use of available information sources so that it can be considered for collection developments in the future. This research used a quantitative approach with a survey method using a closed direct questionnaire. The 109 respondents were gathered by using a non-probability method. The data were analyzed using IPA (Importance Performance Analysis), and statistical descriptive to show analysis of IKP, radar chart method, and priority scale of improvement. IPA results show the level of information source’s importance and satisfaction is 4.10 and 2.63 (gap: -1.47). The IKP results are worth 53%, meaning that users fall into the medium category. The results of the radar chart show that the average library information source’s satisfaction is below the interest of the user. The results of the improvement priority scale show that the Online Journal System (OJS) (gap: -1.81) is a priority for improvement. Overall, the use of information sources in the UMMI library is quite good
