Lenntech: Tellurium: - Physical data, chemical properties, health and environmental effects.
Visual Elements: Tellurium: - General and physical information, source, uses, key isotopes, and ionisation energies.
Wikipedia: Tellurium: - Properties of the element, including its history, applications, and characteristics.
Radiochemistry of Tellurium: - Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF] (July, 1961)