Vasaroangrong, T., W. Singhatanadgid, K. Chitsakul, S. Suwan, S. Pamornphol, N. Sawasdipanich, and S. Janthorn. “Development of a Training Manikin for Intramuscular Injection into the Gluteal Muscle*”. Nursing Research and Innovation Journal, vol. 31, no. 2, Aug. 2025, doi:10.63647/nrij.v31i1.272043.