Jurnal IPTEK Vol. 23 No. 2, 2019 contains seven papers with the authors' diversity came from:
Table of Contents
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							Supporting Docs (Cover, Editorial Board, Table of Contents)
					 
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												Mochammad Taufik,									Hudiono Hudiono,									Amalia Eka Rakhmania,									Ridho Hendra Yoga P									 
		  
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			63-70
		 
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												Fajar Rizki Widiatmoko									 
		  
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			71-78
		 
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												Pudji Irasari,									Muhammad Fathul Hikmawan,									Puji Widiyanto									 
		  
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			79-86
		 
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												Hasan Syafik Maulana,									Adi Kurniawan									 
		  
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			87-92
		 
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												Hari Siswoyo,									Mohammad Bisri,									Mohammad Taufiq,									Vanadani Pranantya									 
		  
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			93-100
		 
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							Development of Artificial Neural Network for Predicting The Photodegradation of Reactive Black 5 Dye
									 
		
			
												Dika Rahayu Widiana,									Ryan Yudha Adhitya									 
		  
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			101-116
		 
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												Adib Pakarbudi,									Anwar Sodik									 
		  
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			117-124
		 
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