Gaya APA

SANTOSA, J, T. (2013). Architect cosman citroen (1881-1935) - Family background, arrival to and career in Surabaya . Surabaya: LPPM University PETRA.

Gaya MLA

SANTOSA, Joko, Triwinarto. "Architect cosman citroen (1881-1935) - Family background, arrival to and career in Surabaya". Surabaya: LPPM University PETRA, 2013. Artikel.