GreenSpec: Environmental Advantages of Rammed Earth Construction
Cheaper, easier rammed earth technique. (cob forum at permies)
Easy Compaction With Wholesale rammed earth equipment for sale - Alibaba.com
Architectural energetics for rammed-earth compaction in the context of Neolithic to early Bronze Age urban sites in Middle Yellow River Valley, China - ScienceDirect
5.5HP Gasoline Tamper Machine Rammed Earth Equipment for Sale
Prefabricated rammed earth - BONUS: Formwork and compaction - YouTube