Tri Hasta Consultants, P.T, & Proyek Penelitian Pencemaran Industri (Indonesia). (1983). Laporan studi energy counting. Tri Hasta Consultants.
Čikaški stil citiranja (17. izdanje)Tri Hasta Consultants, P.T, i Proyek Penelitian Pencemaran Industri (Indonesia). Laporan Studi Energy Counting. [Jakarta]: Tri Hasta Consultants, 1983.
MLA način citiranja (8. izdanje)Tri Hasta Consultants, P.T, i Proyek Penelitian Pencemaran Industri (Indonesia). Laporan Studi Energy Counting. Tri Hasta Consultants, 1983.
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