Ching, S. L. (1998). A job working in secondary setting [master's thesis, The University of Hong Kong]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0029-1812201200008858
Morrison, H. K., & Mann, E. P. (1874). Interesting Capture. Psyche: A Journal of Entomology, 1874(), 4-4. https://doi.org/10.1155/1874/48784