Gaya APA
Santosa, B. (1990).
Efficient English Lesson For SMA Kelas 1 program inti semester 2 (cetakan 1).
Klaten:
The Phinisi Press.
Gaya MLA
Santosa, Budhi.
"Efficient English Lesson For SMA Kelas 1 program inti semester 2".
cetakan 1
Klaten:
The Phinisi Press,
1990.
Text.