na INLIS000000000000148 20210507070259 210507||||||||| | ||| |||| || | 978-01-09531-3802 010-0521000148 id 616-036.22 616-036.22.Gre.f Michael gregg Field epidemiology Bukittinggi Univercity Press Scholarship online 2009 ...hlm.; illust.; 30 cm 4973/fc 2019(2) epidemiologi