van Jaarsveld, Annamarie, et al. “Promoting the Development of Foundation Phase Learners in under-Resourced Environments Using Ayres Sensory Integration® Principles and Custom-Designed, Low-Cost Playgrounds”. South African Journal of Occupational Therapy, vol. 51, no. 1, Apr. 2021, p. 9, https://doi.org/10.17159/2310-3833/2021/vol51n1a3.