D. Purwantini, “EFEKTIVITAS STRETCHING ABDOMINAL DALAM PENGURANGAN NYERI AKIBAT DYSMENORRHEA PRIMER PADA REMAJA: Effectiveness of Abdomnal Stretching in Pain reduction Due To Primary Dysmenorrhea in Adolescenst”, J I K E B, vol. 7, no. 2, pp. 124-129, Sep. 2021.