Newsletter  (Feb 2010)  Page(s) 39.  
 
Major Chemical Compounds (%) responsible for fragrance in Selected Cultivars....
'Sonia' Germacrene-D 43.1, Phenylethanol 20.9

Article (magazine)  (2009)  Page(s) 31.  
 
'Meihelvet'  (= 'Sonia Meilland') Source U plantas [Universal Plantas S.A. (Spain)] Chromosome Number 28

Website/Catalog  (4 Jan 1999)  Page(s) 38.  Includes photo(s).
 
Sonia ('Sweet Promise') Meilland... One of the most widely grown of the florist's Roses and great for gardens, too...

Book  (Dec 1998)  Page(s) 556.  Includes photo(s).
 
Sonia Description... This is probably the most popular greenhouse rose in the world. It bears salmon-pink flowers that are suffused with coral to yellow... 'Sonia' was one of the top money earners for the House of Meilland...

Book  (Sep 1993)  Page(s) 247.  
 
Until the mid 1960s, if you bought a bunch of pink roses at Covent Garden, the chances are that it would have been 'Lady Sylvia'. Today it will be 'Sonia'...

Book  (Apr 1993)  Page(s) 561.  
 
Grandiflora, pink blend, 1974, (MEIhelvet; 'Sonia Meilland'; 'Sweet Promise'); 'Zambra' x ('Baccará' x 'White Knight'); Meilland; C-P. Bud long; flowers pink suffused coral to yellow, double (30 petals), high-centered, large (4-4 1/2 in.); very fragrant (fruity); foliage glossy, dark, leathery.

Book  (Feb 1993)  Page(s) 212.  Includes photo(s).
 
Sonia Large-flowered hybrid tea. Parentage: 'Zambra' x ('Baccarà' x 'Message'). (aka 'Sweet Promise', 'Sonia Meilland', MEIhelvet) France 1976. Description and cultivation... flowers: light pink... a very good glasshouse variety...

Book  (May 1992)  Page(s) 404.  Includes photo(s).
 
Sonia ('Sweet Promise', 'Sonia Meilland', Meihelvet) Hybrid Tea. Meilland (France) 1974... Soft silky-salmon blooms...

Website/Catalog  (1988)  Page(s) 44.  Includes photo(s).
 
SONIA MEILLAND ® Sweet Promise
Une célébrité qui recueille tous les suffrages I Fleur élégante de 25 pétales, d'un tendre coloris rose porcelaine nuancé de rose bégonia. Parfum fruité Excellente tenue sur plante comme en fleurs coupées. Plante vigoureuse, bien ramifiée, parée d'un ample feuillage très résistant. Hauteur : 70/80 cm.

Book  (1988)  Page(s) 140-141.  Includes photo(s).
 
Sonia Classed as a Floribunda. Description... Good under glass...