Higuchi et. al, "The Physics of Tablet Compression IX. Fundamental Aspects of Tablet Lubrication,", 1956

Higuchi et. al, "The Physics of Tablet Compression IX. Fundamental Aspects of Tablet Lubrication,", 1956, Box: 11, Folder: 47. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124681 Accessed December 24, 2025.