Yospanya , J. . . “MODEL DEVELOPMENT FOR PROMOTING IODINE NUTRITIONAL IN PREGNANCY, BANGKOK AREA : PHASE I-II STUDIED THE IODINE SITUATION AND MODEL DEVELOPMENT PROCESSED”. Primary Health Care Journal (Northeastern Edition), vol. 37, no. 1, Mar. 2022, pp. 47-55, https://thaidj.org/index.php/pjne/article/view/12718.