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. IJNMS [Internet]. 2023 Aug. 25 [cited 2025 Aug. 27];7(2):164-70. Available from: https://ijnms.net/index.php/ijnms/article/view/465