Yau, E. Y., N. Samingan, M. Y. Jalaludin, and A. A. . Zaini. “VITAMIN D DEFICIENCY AND CENTRAL PRECOCIOUS PUBERTY (CPP) IN CHILDREN WITH AUTISM SPECTRUM DISORDER (ASD) - A CASE SERIES”. Journal of the ASEAN Federation of Endocrine Societies, vol. 37, July 2022, p. 19, https://www.asean-endocrinejournal.org/index.php/JAFES/article/view/2205.