标题：The Use of Various Indonesian and Elements of Code Experts, Code Mixing as a Mean of Communication in University Level: Case Study of Indraprasta University, Jakarta
摘要：Language is always used as a mean of communication among students, lecturers, staff, and structural officials at the Indraprasta University, Jakarta, English Education Department and Mathematics Education Department. The requirement to use Indonesian is not completed maximally due to the influence local and foreign language. As language users among students, lecturers, academic staff and structural officials, they are required to use Indonesian based on its context. The use of language can be seen from the use of standard language indicating good and correct use of Indonesian. The methods of the study were conducted by observation, interviews, and documentation with a sub-focus domain of the various Indonesian use and elements of code experts as well as code mixing as a means of communication. Data were collected by conducting research documents on the use of the Indonesian with a study of language functions and ethnographic methods starting with the selection of a culture. The results of the study show that the use of the formal and informal domain dominate the use of Indonesian. In addition, there is an element of code expert and code mixing both spoken and written at the English Language Education Study Program and Mathematics Education Study Program at Indraprasta University, Jakarta.
