Ritonga, Putri Welda Utami, Olivia Avriyanti Hanafiah, and Juliana Irmayanti Saragih. 2018. “PROGRAM IPTEK BAGI MASYARAKAT DI POSYANDU LANSIA KELUARGA BESAR WIRAWATI CATUR PANCA SUMATERA UTARA DAN POSYANDU LANSIA BOUGENVILLE TITI KUNING”. Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist) 12 (2):114-18. https://doi.org/10.36911/pannmed.v12i2.12.