Gaya APA

Sumitri, ., Lado, M. (1992). Fundamentals of English grammar for intermediate students / M.J. Lado, Sumitri . Jakarta: .

Gaya MLA

Sumitri, ., Lado, M.J.. "Fundamentals of English grammar for intermediate students / M.J. Lado, Sumitri". Jakarta: , 1992. Textbook.