Gaya APA

Warning: Undefined variable $authors_string in /home/smanda/pustaka/template/akasia/citation/apa_style_template.php on line 21 PENGAJARAN UNIT: pendekatan sistem. (1989). Bandung: Mandar Maju.

Gaya MLA

Warning: Undefined variable $authors_string in /home/smanda/pustaka/template/akasia/citation/mla_style_template.php on line 21 PENGAJARAN UNIT: pendekatan sistem. cetakan 5. Bandung: Mandar Maju, 1989. Text.