"教"字析为"孝"、"文"的形义皆误——兼谈"俗文字法"解析字义之弊
"교"자석위"효"、"문"적형의개오——겸담"속문자법"해석자의지폐
"教"Being Mistakenly Written as the Combination of"孝"and"文"——Also on the Abuses of the Chinese Characters Explained in Folk Writing Rules