An effective training program for registered sales clerks who sell over-the-counter drugs in Japan: A preliminary study
N. Nakagawa, H. Okano, Y. Kyoba, S. Yamada, H. Suzuki, M. Tsuda, S. Yano, M. Makimura, K. Watanabe, S. Yamamura
World Journal of Education
10.5430/wje.v8n5p203