found:Sternberg, E. Farmers' decision making and agricultural development ... 1977:t.p. (Krian District, Perak)
found:BGN, 11/25/85(Kerian, 2nd order adm. div., ADMZ, 5°2ʹN, 100°31ʹE; variant Krian District)
found:GeoNames, algorithmically matched, 2009(civil; 04°54ʹ33ʺN 100°34ʹ11ʺE)
found:Geonet, Aug. 11, 2014:(Daerah Kerian [approved]; Kerian [short]; Krian District [variant]; Perek; administrative division; 04°54ʹ33ʺN, 100°34ʹ11ʺE; 4.909271, 100.569757)