APA (7th ed.) Citation

Sidjabat, W. B. (1982). Ahu si Singamangaraja. Sinar Harapan.

Chicago Style (17th ed.) Citation

Sidjabat, W. Bonar. Ahu Si Singamangaraja. Sinar Harapan, 1982.

MLA (8th ed.) Citation

Sidjabat, W. Bonar. Ahu Si Singamangaraja. Sinar Harapan, 1982.

Warning: These citations may not always be 100% accurate.