O. Dimatulac, R. Librando, J. Lim, J. Obanon, L. N. Oalog, and R. M. Oblima, “Whistles, Words, and Willpower: How Coach Etiquette Relates to Intrinsic and Extrinsic Sport Motivation among Collegiate Softball And Baseball Athletes”, INSPIREE JOURNAL, vol. 7, no. 01, pp. 59–65, Jan. 2026, doi: 10.53905/inspiree.v7i01.167.