Hidayah, Nurul, 		Kholidah, Diniyah, AND 		Mustofa, Annasari.
" NUTRITION EDUCATION WITH THE MEDIA BOOKLET AGAINST THE LEVEL OF KNOWLEDGE, CALCIUM INTAKE AND PHYSICAL ACTIVITY TO PREVENT OSTEOPOROSIS IN THE ELDERLY" <em>Jurnal Pendidikan Kesehatan</em> [Online], Volume 8 Number 1 (29 April 2019)