The objective of this report is to explain the internship activities that the writer did at Balai Bahasa Daerah Istimewa Yogyakarta, starting from 1st February to 28th February 2017 and other four students of English Diploma Program. The main activity that the writer did was translating an international journal. The problems faced during the translation were the technical terms, too many words repetition, and the sentence that is too long. The writer also presents the solutions to solve the problems such as discussing with the instructor, looking for the terms in the dictionary and internet, reading the journal more than once, and dividing the sentence into two sentences. Besides, the writer also did additional activities such as writing a script of RRI, arranging the materials of entry for KBBI, and writing a popular scientific writing.