@incollection{repository47725,
           title = {Surat tugas sebagai penulis dan buku ajar},
       booktitle = {Literature in English Language Teaching},
       publisher = {Penerbit Muhammad Zaini},
           pages = {1--182},
            isbn = {978-623-8065-64-6},
             url = {http://repository.uhamka.ac.id/id/eprint/47725/},
          author = {Heni Novita Sari, Heni Novita Sari}
}