The phrase "according to their source" is correct and usable in written English.
It can be used when referencing information or claims that are derived from a specific origin or authority.
Example: "The data presented in the report is accurate, according to their source, which is a reputable research organization."
Alternatives: "based on their origin" or "as stated by their source".
To ensure a healthy work environment, airflow field control should be used to plan models for the discharge of harmful substances, according to their source and dispersion paths.
While she has not studied H.P.P.D. specifically, Groh has found that the brain is generally unable to distinguish stimuli according to their source; even a single stimulus, artificially induced over and over, is treated as genuine and novel.
The main types of air masses, according to their source regions, are polar and tropical; by their route of travel, both the polar and tropical may be either maritime or continental.
Compounds with antitubercular properties at minimal inhibitory concentrations (MICs) of less than 50 μg/mL or 60 μM were selected and grouped according to their source of origin (plants, bacteria, fungi, marine organisms, etc) and chemical type (terpenes, steroids, alkaloids, flavonoids, poliketides, peptides, etc).
The enzymes encoded by the selected genes were named BVMOAf1, BVMOAf2, and BVMOAf3, according to their source strain, A. fumigatus.
After incubation, ten different colonies were selected (five colonies from each plate) and were labeled according to their source, viz.
In this method, the uncertain parameters are first divided into groups according to their sources.
The procedure classifies government spending on different categories according to their sources of funding and it allows you to distinguish its effect on economic activity.
According to their sources, the iPhone 5 will have a tapered profile, a larger, capacitive button with multi-gesture capability and a nearly bezel-free front.
On its face, the ordinance classifies incomes for taxation according to their sources, one category consisting of salary and wage income and the other of profits from self-employment or business enterprise.
Borehole samples were label according to their sources using the code B1 B8.
