HURKMANS, G. Slechte start met NIVO-coupon. Levende Talen Magazine, Utrecht, Nederland, v. 76, n. 438, p. 105–107, 1989. Disponível em: https://lt-tijdschriften.nl/ojs/index.php/ltm/article/view/1192. Acesso em: 4 mei. 2024.