Higuchi and Reinstein, "Examination of the Physical Chemical Basis for the Isoniazid-p-Aminosalicylic Acid Combination,", 1958, Box: 10, Folder: 135. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124559 Accessed May 25, 2024.