Nguyen-Huu, K., Duong-Bao, N., Thi, L.N., Thi, L.D., Thu, T.H.T. and Lee, S.-W. 2024. An Adaptive Heading Estimation Method based on Holding Styles Recognition Using Smartphone Sensors. CommIT (Communication and Information Technology) Journal. 18, 1 (Apr. 2024), 109-121. DOI:https://doi.org/10.21512/commit.v18i1.9196.