Ayayai Industries Ltd. acquired two copyrights during 2023. One copyright was on a textbook that was developed internally at a cost of $36,800. This textbook is estimated to have a useful life of 4 years from July 1, 2023, the date it was published. The second copyright is for a history research textbook and was purchased from University Press on October 1, 2023, for $54,800. This textbook seems to have an indefinite useful life. How should these two copyrights be