APA (7th ed.) Citation

(2011). Empat langkah kelestarian sumber asli. Berita Harian.

Chicago Style (17th ed.) Citation

Empat Langkah Kelestarian Sumber Asli. Berita Harian, 2011.

MLA (9th ed.) Citation

Empat Langkah Kelestarian Sumber Asli. Berita Harian, 2011.

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