11 1 10 rijanto TOSIN Primary Author PAWIT PURWANTO Primary Author mixed material 979522825 Jakarta Dinastindo 1996 WhatsApp_Image_2026-05-06_at_09.53.11_%281%29.jpeg.jpeg MUFID DJOKO PURWANTO Primary Author mixed material 9795331434 Yogyakarta ANDI OFFSET 1993 WhatsApp_Image_2026-05-06_at_09.53.09_%285%29.jpeg.jpeg Eko Purwanto Primary Author mixed material 9786237893141 Purwokerto SASANTI INSTITUTE 2020 Purwanto Primary Author mixed material Era Revolusi Industri 4.0 Eko Purwanto Primary Author mixed material 9786237893141 Banyumas, Jawa Tengah SASANTI INSTITUTE 2020 Srijanti Primary Author A. Rahman H.I. Primary Author Purwanto S.K. Primary Author mixed material 9789790610859 Jakarta Salemba Empat 2009 WhatsApp_Image_2022-03-11_at_14.32.12.jpeg.jpeg Srijanti Primary Author A. Rahman H. I. Primary Author Purwanto S. K. Primary Author mixed material 9789790610859 Jakarta Salemba Empat 2011 0baafa89-64cd-4850-ac0b-3e4dbde65ec0.jpg.jpg Eko Purwanto Primary Author mixed material 9786237893141 SASANTI INSTITUTE c_dvf.PNG.PNG SUHARYADI PURWANTO S.K Primary Author mixed material Screenshot_2022-09-27_140317.png.png Eko budi purwanto Primary Author mixed material 9789797564148 Yogyakarta GRAHA ILMU 2008 WhatsApp_Image_2022-01-19_at_13.49.49.jpeg.jpeg