THE USING OF RIDDLE TECHNIQUE TO INCREASE STUDENTS’ VOCABULARY MASTERY IN DESCRIBING PEOPLE AT SMA SWASTA KARTIKA 1-4 PEMATANGSIANTAR. jbl [Internet]. 28 April 2019 [dikutip 1 November 2025];1(1):14 – 20. Tersedia pada: http://jurnal.usi.ac.id/index.php/jbl/article/view/970