The objective of the study is to evaluate the use of collection by using citation analysis to know the pattern of use of literature by the students of IAIN Sunan Kalijaga Yogtakarta in writing their theses based on kinds, languages, and literature which were dominantly quoted, to know the use of collection and the collection availability. The used methodologt in this research were descriptive statistical research which took all of IAIN Sunan Kalijaga students'theses collections in 2000 comprising 445 theses. Then, their bibliographies were taken and resulted in 11.058 quotes. Those theses represented five faculties. The analysis was presented in the form ofdata tabulation, percentage and frequency tables. The results showed that the pattern of use of literature in the theses based on the kinds of quoted literatures were books, they were 10133 times quoted (92%); magazines,journals and newspapers were 925 times (8%).Based on the languages, the compositions were Indonesian 8420 quoted (77%); Arabic 2263 (20%); English 375 (3%). Based on the titles, the results were that the students quoted the titles evenly and vary. It started from quoted frequencies far 196 (l.8%), 112 (1.0%),81( 0.7%), to the frequencyo of once quotation. The use level of collection by the students was high. It was based on the result of questionnaires which were based on the literature titles resulted in the evenly spread collection. The percentages vary. They were 1.8%, 1.0%, 0.7%, and 0.6% to 0.0%. The students complete their theses used the collection in the library of IAIN Sunan Kalijaga. Based on the collection availabitity, the conclusion was that the library provided 99.98 % of the needed collection. The variety of collection has to be increased in the future and in order to make the use of journal to be more effective, to develop Arabic language collection. Therefore, it needs to develop Arabic language collection. Emphasizing the ability in reading foreign literature, mainly in Arabic could increase the use of Arabic and English collections by the library user It was suggested that to get more accurqte view, this data has to be developed in the following studies, such as by comparing the literature circulation data. This study is expected to be a starting study for the next studies on the productivity of the writer and the old fashioned literature because it still needs subsequent study for the sake of the library collection development. Keywords: Library; citation analysis ; collection use study ; collection availability