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https://www.academia.edu/37918178/Pucarani_Building_a_pukara_in_the_Peruvian_Lake_Titicaca…

…140 496 179 G 129 38 223 86 352 124 H 35 10 6 2 41 12 TOTAL 5407 1595 7033 2704 12440 4299 *Rock cost = rock wall volume (m3) × 2125 (kg/m3)/7200 (kg/person-day). **Rubble & dirt cost = fill volume (m3)/2.3 (m3/person-day). The volume of the murallas were approximated by (1965) an…