1. Fertility schedules ofunaspis yanonensis (Hemiptera: Diaspididae) in relation to daily temperature
2. Blackburn, V. L. and D. R. Miller (1984) Pests Not Known to Occur in the United States or of Limited Distribution. No. 45. Arrowhead Scale. US Department of Agriculture, Animal and Plant Health Inspection Service, Beltsville, MD, pp. 1–14.
3. ADAPTATIONS IN SCALE INSECTS
4. Jandel Scientific (1996) TableCurve 2D. Automated Curve Fitting and Equation Discovery, version 4.0. Jandel Scientific, San Rafael, CA.