JASMI..; SALMAHS.; DAHELMI..; SYAMSUARDI.. Nesting Sites Apis cerana Fabr. (Hymenoptera: Apidae) in Two Different Altitutes of Polyculture Plantations in West Sumatera. HAYATI Journal of Biosciences, v. 21, n. 3, p. 135, 26 Sep. 2014.