Higuchi et. al, "Physics of Tablet Compression XIII, Development of Die-Wall Pressure During Compression of Various Materials,", 1963

Higuchi et. al, "Physics of Tablet Compression XIII, Development of Die-Wall Pressure During Compression of Various Materials,", 1963, Box: 11, Folder: 51. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124685 Accessed December 24, 2025.