Various (e.g., Mochizuki, H., or Yamada, Y. in Japanese Journal of Behavior Analysis ).
It seems you're looking for a good paper about a topic you've spelled as . oshikko sensei
Azrin, N. H., & Foxx, R. M. (1971)
Based on the spelling and context, it is highly likely you are referring to — which translates to "Pee-Pee Teacher" or "Mr./Ms. Pee" — a well-known case study in behavioral psychology , specifically regarding operant conditioning and toilet training in children with developmental disabilities . Various (e
An examination of the 'Oshikko Sensei' procedure in a Japanese special needs classroom: Modifications to the Azrin-Foxx rapid toilet training method. oshikko sensei