Arini, Diah Irawati Dwi, et al. “Roosting Selection by Red and Blue Lory (Eos Histrio Muller, 1776) in Karakelang Island North Sulawesi”. Jurnal Penelitian Kehutanan Wallacea, vol. 6, no. 1, Mar. 2017, pp. 61-71, doi:10.18330/jwallacea.2017.vol6iss1pp61-71.