Gaya APA

Wibisono, D, C. (). The Roots That Reflect Problems & Hopes of Indonesia: Essay to President Abdurrahman Wahid (Gus Dur) . : PT Sentra Data Indonusa (PDBI).

Gaya MLA

Wibisono, Drs., Christianto. "The Roots That Reflect Problems & Hopes of Indonesia: Essay to President Abdurrahman Wahid (Gus Dur)". : PT Sentra Data Indonusa (PDBI), . Text.