|Birth name||Retno Kustijah|
|Born||19 June 1942|
Kebumen, Dutch East Indies
Though she played singles in high level events, Kustijah's greatest success came in women's doubles with regular partner Minarni. They were the first of only two Indonesian teams to win women's doubles at the prestigious All-England Championships (1968). Their titles together included the quadrennial Asian Games (1962, 1966), and the Malaysia (1966, 1967), Singapore (1967), New Zealand (1968), Canadian (1969), and U.S. (1969) Opens. Kustijah also won mixed doubles at the 1967 Malaysia Open with Tan Joe Hok and at the 1971 Asian Championships with Christian Hadinata. She was a member of Indonesian teams which finished second to Japan in the 1969 and 1972 Uber Cup (women's world team) championships.
|1967||Singapore Open||Minarni Soedaryanto||11–5, 6–11, retired||Runner-up|
|1967||Malaysia Open||Minarni Soedaryanto||4–11, 7–11||Runner-up|
|1966||Malaysia Open||Minarni Soedaryanto||5–11, 11–8, 1–11||Runner-up|
|1969||Canadian Open||Eva Twedberg||1–11, 2–11||Runner-up|
|1970||Singapore Open||Minarni Soedaryanto|| Rosalind Singha Ang
Teoh Siew Yong
|1969||US Open||Minarni Soedaryanto|| Tyna Barinaga
|1969||Canada Open||Minarni Soedaryanto|| Barbara Hood
|1968||All England Open||Minarni Soedaryanto|| Noriko Takagi
|1967||Singapore Open||Minarni Soedaryanto|| Noriko Takagi
|1967||Malaysia Open||Minarni Soedaryanto|| Rosalind Singha Ang
Teoh Siew Yong
|1966||Malaysia Open||Minarni Soedaryanto|| Megah Idawati
Tan Tjung Ing
|1969||Canada Open||Ng Boon Bee|| Darmadi
|1967||Malaysia Open||Tan Joe Hok|| Darmadi
- Pat Davis, The Guinness Book of Badminton (Enfield, Middlesex, England: Guinness Superlatives Ltd., 1983) 108.
- Herbert Scheele ed., The International Badminton Federation Handbook for 1971 (Canterbury, Kent, England: J. A. Jennings Ltd., 1971) 137, 230, 252, 253, 281, 282, 313, 334.
- Davis, 133, 134.
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