infectiou pusat dynamical 2002 virginia outcome ladaz kemenke york dooley cain 1991 ajar untuk perko susceptible center morocco persamaan dwipayana factor semarang disease dalam REVIEW mathematic indah sistem dynamic equation sriwijaya jakarta dasar satuan mcgraw informatika STR hill failure 1998 biasa numerical system model mada risk 653 IIRS predator avian kementrian 2014 kesehatan kestabilan inyama leslie differential negeri dan treatment RI technology nasional dengan data SIR boyce nigeria numerik sutimin new default bandung 2018 2011 chapra mathematical 599 role 2009 widowati hutapea tuberculosi metode method SI prey influenza universita retreatment recovered penyebaran john teaching viru introduction depke ayre yogyakarta oka ntuk jame mangkurat kalu munir 2010 palembang public ordinary epidemik erlangga engineer hethcote informasi pedoman university 2017 partial conte analisi gadjah matematika tuberkulosi relapse penyakit finizio differensial lambung pengendalian maludin verlag 1992 boor ault rositarina 2012 pada federal excellence queena 1980 BMC penerapan SIAM PUSTAKA canale diponegoro springer health son commonwealth buku epidemi 2007 purnamasari modern vaccination 2016 DAFTAR wiley pemodelan inc transmission metrik USA