Gaya APA

Nawiyanto, . (). Pekerja kuli di Sumatra Timur 1880-1940 (Cooli in East Sumatra in 1880-1940) . : .

Gaya MLA

Nawiyanto, . "Pekerja kuli di Sumatra Timur 1880-1940 (Cooli in East Sumatra in 1880-1940) ". : , . .