Eka Putri R, Ghozali S. IMPLEMENTATION OF STUDENT CHARACTER BUILDING THROUGH THE 5S PROGRAM (SMILE, GREET, SALUTE, POLITENESS, COURTESY) AT SDIT EL-HAQ SIDOARJO. IJSS [Internet]. 2025 Feb. 22 [cited 2025 Oct. 10];2(1):53-6. Available from: https://ijss.antispublisher.com/index.php/IJSS/article/view/35