“THE EFFECT OF PURPLE SWEET POTATO (IPOMOEA BATATAS) ON ELEVATED HEMOGLOBIN LEVELS IN PREGNANT WOMEN MID AND LATE PREGNANCY IN A WORKING AREA TABIR LINTAS HEALTH CENTER MERANGIN DISTRICT” (2023) INTERNATIONAL JOURNAL OF NURSING AND MIDWIFERY SCIENCE (IJNMS), 7(2), pp. 164–170. doi:10.29082/IJNMS/2023/Vol7/Iss2/465.