Philippines. Department of Trade and Industry. (2017). Bureau of Philippine Standards. Philippine Star.
Cita Chicago (17th ed.)Philippines. Department of Trade and Industry. "Bureau of Philippine Standards." Philippine Star 2017.
Cita MLA (9th ed.)Philippines. Department of Trade and Industry. "Bureau of Philippine Standards." Philippine Star, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.