R. T. N. SINULINGGA, Y. SOEROSO, R. LESSANG, and D. F. S. SASTRADIPURA, “PROBIOTIC LACTOBACILLUS REUTERI EFFECT’S ON THE LEVELS OF INTERLEUKIN-4 IN PERIODONTITIS PATIENTS AFTER SCALING AND ROOT PLANING”, Int J App Pharm, vol. 12, no. 2, pp. 64–68, Jul. 2020.