Metode penelitian kuantitatif kualitatif dan R & D Sugiyono text Bandung Alfabeta 2019 ed.2 cet.1 ind id xx,444hlm.:ilus.;24cm 001.4 001.4 SUG m 978-602-289-533-6 251003 20251003102516 INLIS000000000002736 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)