Mackawan, S., and P. Jenjaiwit. “Evaluation of motor developmental stimulation program given to parents of very low birth weight infants: A pilot study (Thai)”. Asia-Pacific Journal of Science and Technology, vol. 13, no. 7, Apr. 2017, pp. 784-96, https://so01.tci-thaijo.org/index.php/APST/article/view/83625.