Tita Septi Handayani และ Susheewa Wichaikull. (2015) The effect of self-efficacy for refusal smoking program among male junior high school in Bangkulu, Indonesia. Kasetsart University:ม.ป.ท.Tita Septi Handayani และ Susheewa Wichaikull. 2015. The effect of self-efficacy for refusal smoking program among male junior high school in Bangkulu, Indonesia. ม.ป.ท.:Kasetsart University;Tita Septi Handayani และ Susheewa Wichaikull. The effect of self-efficacy for refusal smoking program among male junior high school in Bangkulu, Indonesia. ม.ป.ท.:Kasetsart University, 2015. Print.