Design: a financial modelling system. - Fred Appleyard; Roger K. W. Hui (APL, 1985)

Some uses of { and }. - Roger K. W. Hui (APL, 1987)

APL ? - Roger K. W. Hui; Kenneth E. Iverson; Eugene E. McDonnell; Arthur T. Whitney (APL, 1990)

Gerunds and Representations. - Robert Bernecky; Roger K. W. Hui (APL, 1991)

Tacit Definition. - Roger K. W. Hui; Kenneth E. Iverson; Eugene E. McDonnell (APL, 1991)

TAGS: Trains, Agendas, and Gerunds. - Roger K. W. Hui; Kenneth E. Iverson (APL, 1994)

Rank and Uniformity. - Roger K. W. Hui (APL, 1995)

Representations of Recursion. - Roger K. W. Hui; Kenneth E. Iverson (APL, 1995)

Mathematical roots of J. - Roger K. W. Hui; Kenneth E. Iverson (APL, 1997)

Sparse arrays in J. - Roger K. W. Hui (APL, 1999)

APL since 1978. - Roger K. W. Hui; Morten Kromberg (Proc. ACM Program. Lang., 2020)