APA (7th ed.) Citation

Siregar, Z. (2015). Tegra Santun Meminta Tolong. Pengurus Besar IPI.

Chicago Style (17th ed.) Citation

Siregar, Zhizhi. Tegra Santun Meminta Tolong. Pengurus Besar IPI, 2015.

MLA (8th ed.) Citation

Siregar, Zhizhi. Tegra Santun Meminta Tolong. Pengurus Besar IPI, 2015.

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