1. McCravy, K. W. 2018. A Review of Sampling and Monitoring Methods for Beneficial Arthropods in Agroecosystems. insects. 9( 170):1-27.
2. Cane, J. H., Minclkey, R. L. and Kervin, L. J. (2000). Sampling bees (Hymenoptera: Apiformes) for pollinator community studies: pitfalls of pan-trapping. Journal of Kansas Entomology Society. 73: 225-231.
3. Khan, A.R., Ramzan. M., Mukhtar, M.K. and Khan, A.A. (2016). A comparative analysis of efficacy of hand nets and bowl traps (bluish and yellowish) in collection of hymenopteran pollinators (Phylum: Arthropoda) from different cash crops of irrigated areas of district Bhakkar and Layyah, Punjab, Pakistan. Journal of Entomology and Zoology Studies. 4(6): 316-321.
4. Buffington, M. L., Garretson, A., Kula, R.R. Gates, M.W., Carpenter, R., Smith, D. R. and Abigail A.R. Kula. 2020. Pan trap color preference across Hymenoptera in a forest clearing. Entomologia Experimentalis et Applicata. 169:298–31. 1DOI: 10.1111/eea.13008.
5. Campbell, J. W. and Hanula, J. L. (2007). Efficiency of Malaise traps and colored pan traps for collecting flower visiting insects from three forested ecosystems. Journal of Insect Conservative. 11: 399-408.