APA (7th ed.) Citation

Siagian, S. P. (1989). Filsafat administrasi. Haji Masagung.

Chicago Style (17th ed.) Citation

Siagian, Sondang P. Filsafat Administrasi. Haji Masagung, 1989.

MLA (8th ed.) Citation

Siagian, Sondang P. Filsafat Administrasi. Haji Masagung, 1989.

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