White T, Payne T, McNeill M, Bewsell D. The problem with grubby footwear at international borders a New Zealand case study of golfers. NZPP [Internet]. 2008 Aug. 1 [cited 2023 Dec. 3];61:384-. Available from: https://journal.nzpps.org/index.php/nzpp/article/view/6851