Do Hung Dang, V.; Nozawa, Y.; Van Chien, P.; Dinh Do, T.; Van Quang, P.; Van Hung, T.; Manh Hung, V.; Tran Manh, H.; Nguyen Duc, T.; Dam Duc, T. The Assemblage Structure of Large Size Sea Urchins (Diadematidae) in Northern Vietnam. VJMST 2022, 22, 399-406.