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http://ejournal.uigm.ac.id/index.php/TG/article/view/384

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docplayer.info/71587491-Analisis-desain-turbin-kincir-air-poncelet-water-wheelpada-saluran-terbuka-open-channel-flow.html

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https://www.sfsjorethang.in/hammer-mill-anna-university-25490.html

https://id.scribd.com/document/356051433/Tesis-Analisis-Kebutuhan-Infrastruktur-S-2-pdf

https://id.scribd.com/document/356051433/Tesis-Analisis-Kebutuhan-Infrastruktur-S-2-pdf