• Journal of the Korean Dentistry   1980  Volume.8  No.2 81 ~ 83

• Journal of the Korean Dentistry   1980  Volume.8  No.2 67 ~ 79

• Journal of the Korean Dentistry   1980  Volume.8  No.2 62 ~ 62

• The Measurment of the pH of Dental Plaque

• Kichuel K. Park and George K. Stookey

• Journal of the Korean Dentistry   1980  Volume.8  No.2 39 ~ 61

• Journal of the Korean Dentistry   1980  Volume.8  No.2 26 ~ 28

• Journal of the Korean Dentistry   1980  Volume.8  No.2 12 ~ 15