Lua APA (7ú heag.)

Obeng, D. (1993). Mutiara Mahakam / Djumri Obeng. Puspa Swara.

Lua i Stíl Chicago (17ú heag.)

Obeng, Djumri. Mutiara Mahakam / Djumri Obeng. Puspa Swara, 1993.

Lua MLA (8ú heag.)

Obeng, Djumri. Mutiara Mahakam / Djumri Obeng. Puspa Swara, 1993.

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