But finer materials such as compost should only be two and a half to seven and a half centimeters high.
VOA: special.2009.06.23
If finer materials are used, such as cut grass, the depth should be two and a half to seven and a half centimeters.
VOA: special.2009.06.30
Other materials such as lime and cement can be added to strengthen the adobe.
VOA: special.2009.01.12
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