Yih-Long Chang

Winqsb

2002

Qsb+

1991

Quantitative Systems for Business

1986

QSOM, Quantitative Systems for Operations Management

1991

WinQSB version 2.0

2003

WinQSB Software

2002

Quantitative Systems

1989

Qsom

1988

Qsb + Quantitative Systems for Business Plus Version 3.0

1994

QSB plus

1989

Qsb Plus: Quantitative Systems for Business Plus

1991

QSB+ for Windows

1997

QSB+ 2.1

1995

QS Version Quantitative Systems 3.0

1994

Qs: Quant Systems

1991

Qs Quant Systems Versio 2.1

1996

Macqsom

1992

Macqs : Quantitative Systems

1992