Ghasemi, saeed, meimanat Hosseini, hamid AlaviMajd, hooman Manochehri, and zahra Norozi. “Comparison of Perceived Family Structure of Mothers With a Disabled Boy and Mothers With a Boy Without Disabilities Upon Circumplex Model in Tehran in 1390”. Advances in Nursing & Midwifery, vol. 25, no. 88, Aug. 2015, pp. 1-8, https://journals.sbmu.ac.ir/en-jnm/article/view/9785.