In contrast to his low-key career as an education official, Kim was widely known as a scholar for a collection of textbooks published in Romanized Vietnamese (quốc ngữ), especially for his writings on Confucianism, Buddhism, and Vietnamese history [REF].
His two best known works were Việt Nam sử lược (A Brief history of Vietnam), published in 1920, and Nho giáo (Confucianism), published in 1929-1933 [REF].